A scoped factory audit can provide dated observations of a named site, its equipment, records, people and processes. Its evidentiary value depends on auditor independence and competence, the checklist, sampling, access, timing and whether the site and entity are the ones relevant to the proposed order. An audit is stronger than supplier sales material for the points actually observed; it is not a standing guarantee of capability or future production.
Factory Audit vs Video Walkthrough vs Pre-Shipment Inspection
| Method | When to Use It | What It Can Demonstrate | What It Cannot Demonstrate | Typical Limitation |
|---|---|---|---|---|
| Live video walkthrough | Early supplier screening | Shows the locations, people, equipment and records visible during the call | Identity of everything off-camera, sustained capability or batch conformity | Supplier-controlled access and viewpoint; may be staged |
| Factory audit (on-site) | When site, process and system evidence affect the supplier decision | Provides dated observations of scoped equipment, processes, records, materials and conditions | Future production quality, available capacity or that your order will run at the site | One site, time and checklist; access and sampling limit the result |
| Pre-shipment inspection | At the contractually defined completion stage before release | Samples defined characteristics from an identified lot and checks quantity/packaging evidence | Every unit, hidden characteristics or tests outside the method | Depends on lot integrity, random selection and inspectable requirements |
| During-production inspection | When early process or product evidence can still change the outcome | Observes named stages and samples work in progress | Final-lot acceptance or events after the visit | A dated sample of production, not continuous monitoring |
This guide breaks down what to examine, what to document, and how to read the results without over-reading them.
Why Audit a Factory?
A well-scoped audit can add evidence to three questions that remote checks leave open:
| Purpose | What the audit reveals |
|---|---|
| Capability evidence | Which relevant processes, equipment, people and records were observed, and what still needs a trial or product-specific study? |
| Control risk | Which observed gaps in quality, materials, safety or subcontracting require action or specialist review? |
| Dated baseline | What was observed at this site and time, so later evidence can be compared without treating the snapshot as permanent? |
Online presentation and response speed provide little direct evidence about the production process. The audit should test named supplier claims against observations and records relevant to the proposed product.
Pre-Audit Document Checklist
Before anyone walks through the gate, request and review the paperwork. Reviewing it ahead of time tells you what the factory claims — the audit then either confirms or contradicts those claims.
| Document | What to check |
|---|---|
| Business license (营业执照) | Check the current GSXT record and map the entity to the audited site; business scope and registered address are context, not proof of site ownership or production |
| ISO 9001 or other quality management certificate | Confirm the issuer, accreditation, certificate status, entity, site and scope; certification does not establish product conformity |
| Product test or conformity documents | Identify the applicable market rule first, then verify issuer or lab, model, standard edition, dates, site and report scope |
| Social compliance audit reports | Review date, site, program, methodology and findings; these are not product quality or safety certificates |
| Factory layout or floor plan | Keep it to compare against the site and process flow observed on the day |
| Organization chart | Understand reporting lines, authority and independence of quality functions |
| Equipment list | Compare identity, location, condition and observed availability against the product process |
| Production and capacity records | Test the assumptions behind the proposed lead time and order volume without treating one schedule as proof of future capacity |
| Export evidence | Identify the exporting entity and what the evidence actually shows; shipment history does not establish quality or compliance |
Treat every document as a scoped evidence item. An active management-system certificate can support a claim about the named organization, site and scope; it does not establish product conformity or show how a particular line ran on the audit date.
Production Floor Inspection Checklist
The floor is the heart of the audit. This is where claims meet reality.
Equipment and Capacity
| Checkpoint | What to look for |
|---|---|
| Machine types and quantity | Match against the equipment list; note brands, age, and condition |
| Maintenance records | A real maintenance schedule with recent entries, not a blank logbook |
| Current activity | Are machines running, workers present, products moving down the line? |
| Capacity utilization | How many lines are active? Obvious idle equipment or overcrowding both tell you something |
| Tooling and mold storage | Organized, labeled, with maintenance records — this also bears on who owns your tooling |
| Spare parts inventory | Evidence of planned maintenance rather than scrambling for repairs |
Idle capacity isn't automatically a red flag, and a packed floor isn't automatically reassuring. What you're judging is whether the activity you see is consistent with a factory that could take your order without cutting corners on someone else's.
Production Process
| Checkpoint | What to look for |
|---|---|
| Work instructions at stations | Are operators following documented procedures, or working from memory? |
| Production flow | Does the layout move logically: raw material → processing → assembly → QC → packaging? |
| In-process quality checks | Are there checks between stages, or only at the end? |
| Rework and scrap handling | Is there a designated area? How much rework is sitting around? |
| Line changeover | How does the factory switch between products, and how disruptive does it look? |
A rework area is not a verdict. Record quantity, status identification, segregation, authorization, disposition records and whether the material can return to production without traceability. Those controls are more informative than appearance alone.
Facility Condition
| Checkpoint | What to look for |
|---|---|
| Cleanliness and organization | Cluttered and dirty, or maintained and orderly? |
| Lighting and ventilation | Adequate for the precision your product needs? |
| Safety equipment | Fire extinguishers, marked exits, first aid — present and accessible? |
| Worker safety gear | Gloves, masks, eye protection where the work calls for it? |
| Chemical and material storage | Labeled, ventilated, separated from production? |
Quality Control System Checklist
A factory can own a thick QC manual and still ship defects. The point of this section is to test whether the system is operating, not whether it exists.
QC Documentation
| Checkpoint | What to verify |
|---|---|
| QC manual or quality policy | Accessible and used — not a framed certificate gathering dust |
| Incoming material inspection procedures | Documented and showing recent activity |
| In-process inspection records | Dated, signed, with actual measurements — not rows of identical checkmarks |
| Final inspection records | For recent shipments; look for consistency across them |
| Non-conformance and corrective action records | Evidence that problems get logged and acted on |
| Calibration records | Current and traceable for measurement equipment |
| Customer complaint records | Present, with some sign of how the factory responded |
Records that all look identical, are signed by one person, or stop abruptly a few months back are worth probing. Falsified or back-filled records are more telling than no records at all.
QC Lab or Inspection Area
| Checkpoint | What to look for |
|---|---|
| Testing equipment | Relevant to your product — calipers, durometers, tensile testers, and so on |
| Calibration stickers | Current, from a recognized provider |
| Sample retention | Are reference samples from past orders kept? |
| Inspection lighting | Bright enough, color-corrected where visual inspection matters |
| AQL sampling tables | Inspectors should be able to say which standard they work to |
QC Staff
| Checkpoint | What to ask |
|---|---|
| Team size and reporting structure | How many QC staff, and do they report to production or independently? |
| QC manager background | Relevant experience, certifications, or training records |
| Inspector-to-line ratio | Is coverage realistic for the number of active lines? |
Where QC reports matters more than buyers often assume. If the QC manager answers to the production manager, there's pressure to pass borderline goods to keep the schedule moving. Independent reporting doesn't remove that pressure, but it changes the incentives.
Material Traceability Checklist
Traceability means knowing where your materials came from and being able to follow a finished unit back to its material batch. For food-contact, medical, or children's products, this tends to be a regulatory requirement rather than a nice-to-have.
| Checkpoint | What to verify |
|---|---|
| Receiving records | Supplier name, date, batch number, quantity |
| Supplier material certificates | On file and current for critical materials |
| Storage labeling | Batch numbers visible and matching the receiving records |
| Batch tracking | Can the factory trace a finished product back to a raw material batch? |
| Segregation | If both certified and non-certified materials are used, are they physically separated? |
| Subcontractor traceability | If plating, coating, or heat treatment is outsourced, can those batches be traced too? |
If a factory cannot show where your materials come from, you cannot prove what your product is made of. For regulated goods, that single gap is often enough to step away from a supplier, regardless of how everything else looks.
Worker and Process Observations
Some of the most useful signals don't appear in any document. Walk the floor and watch:
- Work pace — record cycle time, staffing, observed queues and whether required checks can be completed at that pace.
- Training — can workers reach current instructions and explain the characteristics they check?
- Turnover — ask for the source, period and role breakdown of any turnover claim, then examine training and authorization records for the proposed line.
- Shift structure — identify shifts, supervision and whether process controls and inspection coverage are equivalent across them.
- Language fit — confirm workers can understand the instructions and records used at their stations.
These reads are subjective, and you should treat them that way. But a floor that feels chaotic or strained will often produce inconsistent quality no matter how good the QC manual reads.
Photo and Video Evidence
The documentation you leave with can matter as much as the audit itself. Months later, when you're comparing suppliers or pushing back on a problem, your notes and memory won't carry the weight that photos will.
What to photograph:
- Building exterior with the company sign or address visible
- The production floor from several angles, showing layout
- Machines relevant to your product, with nameplates legible
- Raw material storage with labeling
- The QC inspection area and its equipment
- Finished goods warehouse
- Anything that concerns you — damaged equipment, cluttered zones, safety issues
- The business license on display, if present
- Certifications on display, for later verification with issuing bodies
What to record on video:
- A walkthrough of the full flow, receiving to shipping
- Machines actually running and producing
- QC inspectors performing checks, with an explanation of what they're testing
- The packaging area and process
A few rules on evidence:
- Take more than you think you need. Storage is cheap; a second trip isn't.
- Include something for scale in close-ups.
- Shoot so that someone who wasn't there could form their own judgment.
- If you're using a third-party inspector, ask for original, unedited photos up front.
Audit Report Interpretation
Reading the report well is its own skill. The temptation is to glance at the score and move on, which is where buyers get into trouble.
| Report element | How to read it |
|---|---|
| Overall score or rating | Read the scoring method, weights and excluded areas; do not create a universal pass threshold |
| Non-conformances | Assess the exact requirement, evidence, product relevance and required disposition rather than relying on the label alone |
| Observations | Context that may need follow-up even when it does not trigger the audit program's formal classification |
| Photographic evidence | Reconcile images to finding IDs, site areas and dates; request originals where the decision justifies it |
What a report does not do:
- It doesn't promise future quality — it captures one moment in time.
- It doesn't predict how the factory behaves under schedule pressure.
- It doesn't confirm your specific order will be produced at the facility you audited.
A clean report is a genuinely good signal. It isn't a warranty. Pair it with pre-shipment inspection to check what comes off the line during your actual production run.
Factory Audit Quick Checklist
Copy this for your own audit:
Pre-Audit
- Business license cross-checked on the government database
- Claimed certifications verified with issuing bodies
- Equipment list and floor plan requested
- Audit scope and checklist shared with your auditor or inspection company
Production Floor
- Equipment matches the claimed list; machines operational
- Work instructions visible at stations
- In-process QC checkpoints observed
- Facility clean, organized, adequately lit
- Safety equipment present and accessible
- Worker safety gear in use where appropriate
Quality Control
- QC documentation exists, is revision-controlled and shows recent use
- Relevant measuring and test equipment has identifiable calibration or verification status
- Sampling procedures name their standard, edition, plan inputs and disposition rules
- Non-conformance records connect findings, disposition and corrective action
- Quality roles, release authority and conflicts with production are understood
Materials
- Receiving records maintained
- Supplier material certificates on file
- Batch traceability demonstrated, material to finished product
- Certified and non-certified materials segregated where both are used
Evidence
- Building exterior photographed
- Production floor photographed from multiple angles
- Key machines photographed with nameplates visible
- QC area and equipment photographed
- Video walkthrough recorded
- All concerns documented with photos
Audit Results Interpretation
| Finding Type | Example | Buyer Action |
|---|---|---|
| Supported observation | Named evidence matches the audit requirement within the stated site, date and sample | Record the evidence and keep order-specific controls open |
| Gap or non-conformance | Missing, conflicting or nonconforming evidence against a stated requirement | Assess product and transaction impact; assign containment, correction and verification |
| Scope limitation | Area, record, shift, subcontractor, process or test was not accessible or not sampled | Keep it unresolved and decide whether new evidence is required before release |
Audit Scope By Product Risk
| Product Category | Audit Depth | Key Focus Areas |
|---|---|---|
| Process and dimensional risk | Product-specific process audit | Special processes, tooling, measurement systems, capability studies, maintenance and subcontracting |
| Material or contamination risk | Material and hygiene controls | Approved sources, receipt identity, storage, segregation, batch traceability, cleaning and change control |
| Electrical or functional risk | Engineering and test-system review | Component control, ESD where relevant, test methods, fixtures, software, calibration and failure records |
| Regulated or safety-critical product | Specialist scope set from applicable requirements | Quality-system and product controls selected by qualified regulatory, engineering and audit personnel |
Corrective Action Plan After the Audit
An audit identifies issues. A corrective action plan (CAP) addresses them. After receiving an audit report with yellow or red findings, the supplier should provide a CAP that covers:
What a corrective action plan should include:
- Specific issue: Each finding from the audit report, referenced by finding number.
- Root cause: The supplier's analysis of why the issue exists — not just a surface fix.
- Proposed correction: What will be done, by whom, and by when.
- Evidence of completion: A photo, document, or record demonstrating the correction was made.
- Preventive measure: What will change in the system to prevent recurrence.
When to re-audit:
- Revisit findings that affect a release condition, legal requirement, critical process or evidence gap that cannot be closed remotely.
- Use a focused follow-up when the affected system and required evidence are narrow; use a broader audit when findings call the original scope into question.
- Set the next review from product risk, supplier change, performance history and the limits of the previous audit—not a universal annual interval.
When a desktop review is enough: For minor yellow findings with clear documentary evidence (e.g., an expired certificate that has been renewed, a missing record that has been located), a desktop review of the submitted evidence may be sufficient. For physical findings (equipment condition, facility issues, QC practice), a desktop review is not enough — verify on site.
When to pause a project:
- The supplier misses the agreed corrective-action date without an evidence-based recovery plan.
- The response addresses symptoms but not the process or control failure.
- The same issue recurs in follow-up evidence.
- The supplier disputes the finding without traceable counter-evidence.
A satisfactory audit does not replace batch-specific controls. An audit provides observations within its stated site, date and scope. An inspection samples defined characteristics from an identified lot under its own method and limitations. Neither alone proves every unit conforms, and the appropriate controls depend on product and transaction risk.
A note on compliance: BSCI, Sedex, and similar social compliance audits are assessments of working conditions and social responsibility — they are not product certifications and do not verify product quality or safety. Product test reports, quality management certificates (e.g., ISO 9001), and social compliance audits serve different purposes and should be evaluated separately. Regulatory requirements vary by product category and destination market. Buyers should verify requirements with qualified testing laboratories, compliance advisors, or the relevant issuing bodies for their specific product and market. This guide does not constitute legal or compliance advice.
FAQ
What should be included in a comprehensive China factory audit?
A product- and site-specific audit can cover documents, production processes, equipment, quality controls, material traceability and dated evidence. Select the scope for the decision; no one checklist is comprehensive for every factory or market.
What documents should I check before auditing a Chinese factory?
Request the business license, relevant management-system and product documents, equipment list, floor plan, organization chart and production records. Verify issuer, status, scope, entity and site independently; these documents define claims for the auditor to test.
What should I look for on a Chinese factory production floor?
Compare observed machines, instructions, material flow, inspection points, maintenance and records with the process your product requires. Treat general orderliness as context, not a capability conclusion.
What QC systems should a Chinese factory have in place?
Look for documented inspection procedures that are actually used, incoming material checks, signed in-process records with real measurements, final inspection records, non-conformance tracking, calibrated equipment, and a QC team that reports independently from production. The system existing on paper isn't the same as it operating day to day.
How do I verify raw materials during a Chinese factory audit?
Check receiving records with supplier names and batch numbers, supplier certificates for critical materials, storage labeling that matches those records, and whether a finished unit can be traced back to its material batch. For regulated products, also confirm certified and non-certified materials are physically separated.
What evidence should I collect during a factory audit?
Photograph the exterior, the floor from several angles, machines with nameplates, material storage, the QC area, and any concerns, plus a video walkthrough of the full flow. Aim for evidence that would let someone who wasn't present form their own judgment of the factory.
How should I interpret a Chinese factory audit report?
Look past the headline score. Read each requirement, evidence item, classification method, product relevance and open limitation. The buyer—not the score—must decide the required corrective action and transaction gate.
Can a factory audit prevent quality problems in production?
An audit can reveal weaknesses within its scope, but it does not quantify how much risk was reduced. A later batch can differ by crew, material, process, site or schedule. Use order-specific change control and inspection rather than treating the audit as prevention.
What are the limitations of a one-time factory audit?
A single audit is a snapshot. It won't show how the factory performs under a tight deadline, whether quality holds across shifts, or how standards drift between visits. For ongoing relationships, periodic re-audits combined with production inspections give a fuller picture.
Should I tell the factory I am coming before the audit?
Choose announced, semi-announced or unannounced access with the audit provider based on authorization, site access, worker safety, evidence needs and the audit program. Record the access conditions because they affect how the result should be read.
How many photos and videos should an inspector take?
Set an evidence schedule by checklist item and finding: exterior/site identity, process areas, equipment nameplates, records, materials, measurements and concerns. Quantity alone is not a quality measure; every image should be attributable to a location, date and audit point.
What score or rating indicates a factory is acceptable?
There is no universal score. The meaning depends on the audit scheme, scope, weights and product requirements. Define decision gates for specific findings and missing evidence rather than inventing a cross-program numeric threshold.
Public source citations
ISO 9001 in the supply chain
iso.org | official standards guidance | checked 2026-07-15
AUDIT-02CPSC: Selecting a Third Party Laboratory
cpsc.gov | official guidance on sample and production variability | checked 2026-07-15
AUDIT-03National Enterprise Credit Information Publicity System
gsxt.gov.cn | official company-registration database | checked 2026-07-15
Disclaimer: This checklist is a buyer-side scoping aid, not a substitute for a qualified auditor and product-specific legal, engineering, safety or regulatory review. Audit results capture evidence within a stated scope and do not predict future performance.