The English intelligent pronunciation training system is a comprehensive system based on multiple functions such as speech recognition, comparison, pronunciation scoring, and correction. In this paper, the Fourier analysis of the speech signal is carried out to obtain the spectral characteristics of each frame. At the same time, this paper analyses the speech signal using multi-sensor fusion tracking and recognition technology. The method achieves the purpose of speech recognition by automatically matching the entropy value of the extracted English speech-related information. The practice has proved that the speech recognition system developed can accurately carry out qualitative pronunciation lip correction. The application of this method in English speech recognition has a good application prospect.