With the rapid development of modern information technology, global economic integration has shown a vigorous development trend. In this context, cross-border e-commerce came into being and has a strong momentum of development. The rise of cross-border e-commerce has created huge development space and broad market prospects for enterprises in various industries and scales. Stimulated by market dividends, companies have all joined this new trade model. In recent years, the Chinese government has introduced a series of policies and measures to promote the development of cross-border e-commerce from various aspects such as industrial planning and system construction, making it a new driving force for the growth of foreign trade economy. With the rapid development of China's cross-border e-commerce industry and the rapid integration with the international market, the issue of China's cross-border e-commerce talents has gradually attracted attention. As a new business form integrating "Internet + foreign trade", cross-border e-commerce is a business activity involving multiple regulatory processes, multiple management departments, multiple technical fields, and multiple transaction links. Therefore, compound talents who master trade, management, foreign language, logistics, computer and other knowledge at the same time need to be engaged in this work. Limited by the cost of using human resources, most of the employees of cross-border e-commerce in China are those who have transformed from traditional trade and domestic e-commerce. They generally lack the operation and management experience of cross-border e-commerce and cannot meet the development needs of the industry. The cultivation of cross-border e-commerce talents is a systematic and huge project. Since China's cross-border e-commerce started relatively late compared to other countries, China has been in a relatively backward position in the field of cross-border e-commerce talent training. The problem of insufficient and shortage of cross-border e-commerce talent training has affected the in-depth development of China's cross-border e-commerce industry and enterprises. Therefore, in view of this current situation, this paper will conduct a comprehensive and in-depth study on the cultivation of cross-border e-commerce talents in China, and put forward countermeasures and suggestions. The purpose of this research is to put forward the construction of a cross-border e-commerce talent training mechanism through research, and to cultivate cross-border e-commerce talents who can adapt to the new international social environment, international trade situation, global informatization construction, cross-border e-commerce industry development and the requirements of the times. The main contents are as follows. First, clarify the definition and constituent elements of the concept of cross-border e-commerce talents. How to identify and determine cross-border e-commerce talents, how to accurately describe their characteristics, and how to make clear requirements for their ability and skill composition are the basis and key to the cultivation of cross-border e-commerce talents in China. Second, solve the contradiction between supply and demand of cross-border e-commerce talents. There is a certain degree of contradiction between supply and demand of Chinese cross-border e-commerce talents in different fields and at different levels. In order to solve this problem, this study will conduct research from five aspects: talent source, talent quantity, talent quality, talent structure, and talent flow. Through the research, the importance of solving the contradiction between supply and demand of cross-border e-commerce talents is further pointed out. Third, optimize the cross-border e-commerce talent training mechanism and environment. Optimizing China's cross-border e-commerce talent training mechanism and environment is of irreplaceable significance for promoting the development of cross-border e-commerce. Based on various research theories, this study will propose strategies for optimizing the cross-border e-commerce talent training mechanism and environment, and analyze the problems existing in China's cross-border e-commerce talent training and the problems that arise from four different perspectives: talent groups, schools, governments, and enterprises. The reasons are analyzed, aiming to solve the problem of supply and demand of cross-border e-commerce talents and the problem of insufficient training. This study also emphasizes the collaboration between schools, governments, and enterprises in the process of cross-border e-commerce talent training, and achieves the goal of talent training through resource integration, complementary advantages, and joint cooperation.