Abstract With the rapid development of digital economy, much attention has been paid to whether the digital economy can become an “accelerator” to narrow the regional gap. Among them, whether the digital economy can promote technological convergence is particularly critical. From the perspective of factor allocation, this paper discusses the influence and transmission mechanism of digital economy on regional technology convergence from both theoretical and empirical aspects. There are following findings: (1) There are obvious characteristics of absolute β convergence and conditional β convergence in the level of technological innovation, the quality and quantity of technological innovation and the number of technological innovation in China. That is, with the passage of time, the technological innovation gap gradually narrowed and eventually converged to a stable state. When considering the factors such as economic development level and government support, the conclusion remains unchanged; (2) Digital economy can effectively promote regional technological convergence, and the speed of digital economy to promote the convergence of technological innovation quantity is faster than that of the convergence of technological innovation quality. After the treatment of endogenous problems and the replacement of core explanatory variables, it still has a good robustness; (3) Digital economy can promote regional technological convergence by optimizing the allocation of labor factors and capital factors. The conclusion of this paper provides some policy enlightenment for promoting high-quality regional coordinated development and implementing digital economy strategy.