The competition in the online shopping industry is becoming intense. Compared with creating new customers, improving customer stickiness and repurchase intention is more important for the long-term development of E-commerce enterprises. At the same time, with the development of information technology, e-commerce platforms have more multiple channels to communicate with consumers timely. Thus, Integrated Marketing Communication, which is a more effective marketing strategy to E-commerce platform, obtained more attention. The aim of this paper was to clarify the path of Integrated Marketing Communications influence on online customer's repurchase intention. We collected data by taking 514 questionnaires of e-commerce users who have experience of online shopping in China. This paper used SPSS22.0 and AMOS24.0 data processing software to study the relationship between Integrated Marketing Communications (IMC), and customer satisfaction and online customer's repurchase intention. The mechanism by which IMC worked in the relationship was also explored. The results showed that IMC has a significant positive effect on customer satisfaction, which has a significant positive effect on online customer's repurchase intention. Additionally, compared with the negative direct regulation, IMC positively regulates online customer's repurchase intention by improving online customer satisfaction experience indirectly. The online consumer satisfaction experience plays a significant mediating role of IMC and online customer's repurchase intention. This analysis is significant. It not only confirms the positive role of IMC in the field of E-commerce in China to increase customer's repurchase intention but also has a more comprehensive and accurate analysis of the path mechanism.