Abstract: Technological innovation can be divided into high-level technological innovation and low-level technological innovation according to its level, and their effects on technological progress are not same. In this paper, the effects of five independent variables, such as high-level technological innovation, low-level technological innovation, technical imitation, technology spillover and reverse technology spillovers, on technological progress is analyzed by Path coefficient analysis. Though the analysis on the direct path coefficient, the value of the high-level technological innovation is the largest; and the value of the low-level technological innovation is the largest on the total indirect path coefficients; on the indirect path coefficients of each variable, the coefficients of the different independent variables show different characteristics, but they have some similarities.