With the traditional growth engine pulling on the world economy weakened,cross-border e-commerce has become an important growth point of China's foreign trade. The Belt and Road strategy had a positive effect greatly push the further development of China's cross-border e-commerce,but the newpolicies has led to fell down the cross-border ecommerce transaction volume. In order to study the impact of the introduction of new policies and regulations on cross-border ecommerce,weput forward the influence model of...