With Cross-border E-commerce(CBEC) rapid development, consumers pay more attention to product quality, content, and consumption experience than products. They are more sensitive to quality than price. Imported product's is a bottleneck problem to be solved. This research constructs the quality risk indexes of CBEC, and uses factor analysis and SEM to carry out empirical test. Results show that customs regulation strength, the product inspection system integrity, platform strength, the differences between policy and law system, Product information symmetry, the credibility and imports transport links integrity are important risk factors.