Different from the past papers which mainly analyze the intention of private car drivers to use electric cars, the paper makes use of survey data at the willingness of taxi drivers in Shanghai to use the pure electric taxi. Based on the technology acceptance model and the characteristics of the sample, the paper constructs a hypothesis model of behavior mechanism, and makes a deep exploration from the aspects of perceived usefulness, perceived ease of use, perceived risk and government policy. The statistical software AMOS was used to fit the model and the output results were analyzed. The results show that, due to the characteristics of the sample, the effect of government policy in this study is not significant, while those of the rest of the factors are obvious. The relevant policies and measures in the proposal were put forward.