Abstract: With technology similarity measuring R&D spillover effects, the various paths and influences of R&D and other resources on technological progress were discussed based on Panel Smooth Transition Regression (PSTR) Model. The results show that technology gap has an asymmetric and positive effect on technological progress rate under the influence of technology gap in the high-tech industry. With the changes of the technology gap, human capital plays a diverse role in technological progress rate through the “collaboration effects” and “learning effects”. Although narrowing the technology gap can promote the technological progress, the high concentration of R&D activities in high-tech industry is not conducive to spillover effect and thus reduces the speed of technological progress. In the end, economic growth can make a contribution to the technological progress. Technology gap creates space for technological progress. Therefore, in order to realize technological progress as well as economic growth, each province should introduce the appropriate high technology and promote the collaborative innovation with other regions.