In recent years, with the mature application of mobile Internet technology and the popularity of intelligent mobile devices, online shopping has become a trend, and PJD has emerged in this context. As one of the mainstream social e-commerce platforms in China, Pinduoduo is committed to providing users with valuable goods and interesting interactive shopping experiences, making "more affordable, more fun" the mainstream of consumers. Exploring consumers' willingness to use PJD Apps and influencing factors is of great guiding significance for the future construction of "Internet +" business model. By using the UTAUT theoretical model, this study constructs the research hypothesis with performance expectation, effort expectation, social influence, contributing conditions, perceived risk and perceived entertainment as the core variables. Samples were collected through questionnaires, and SPSS software was used to conduct an empirical study on the survey results. The results show that: (1) Performance expectation, effort expectation, social influence, facilitating conditions and perceived entertainment have positive effects on users' use of Pinduoduo app; (2) Perceived risk has a significant negative impact on users' willingness to use Pinduoduo app, especially in terms of satisfaction and continuous use. The research results validate the theory of UTAUT, and further expand the application prospect and theoretical value of UTAUT theoretical model in the field of social e-commerce platform. According to the research conclusions, focusing on the characteristics and application of Pinduoduo e-commerce mode, focusing on the core factors affecting users' willingness to use, the paper puts forward three suggestions to improve the software functions, improve the service characteristics of Pinduoduo software, optimize the business model, establish the brand image of Pinduoduo software, and increase the user experience of Pinduoduo software.

Independent Study (M.B.A. (International Business)) -- University of the Thai Chamber of Commerce, 2024