Based on the previous research, this paper updates the data of China's service trade between 2013 and 2019, and studies the changes in the strength of China's service trade competitiveness using international market share and RCA index, and constructs seven index systems and evaluates the score of China's service trade competitiveness using principal component analysis. The results of the study show that China's service trade competitiveness shows a certain upward trend through various indicators and score measures, which indicates that China's service trade has collected certain success country in the development of the last seven years, but it is obvious that China's service trade competitiveness still has a long development space. Therefore, this paper puts forward some suggestions to improve the competitiveness of China's service trade in view of the current situation of China's service trade development.