The invention discloses a product quality sampling method used for cross-border electronic commerce, which is applicable to the characteristic of small batch import of a cross-border electronic commerce enterprise, has few spot check samples, and has strong pertinence. For the enterprise of unqualified products, the times of the spot checks are increased and the cost for submission for inspection is doubled, so that cross-border electronic commerce enterprises strive to improve the product quality and improve the clearance efficiency in consideration of the economic cost in order to save the cost. The examination quarantine department can perform focus monitoring on the enterprises producing the unqualified products, reduces the clearance cost of the qualified enterprises in order to form a virtuous customization circle. When the unqualified product exists, the product quality of an enterprise can be determined by continuously performing spot checks on six batches at most, which greatly reduces the workload of the quality monitoring department, better serves the enterprises and safeguards the safety defense line of the product quality.