International technology spillover effect has been regarded as an important path to realize independent innovation as for the host countries. And the study about whether absorptive capacities of high-tech industries in China improve the achievement of international technology spillover effect from a meso perspective is the weak link in current research. From the perspectives of overall high-tech industries and heterogeneous sub-sectors, this paper theoretically and empirically analyzes the effects of international technology spillover and absorptive capacity on independent innovation. It arrives at the results as follows:firstly, international technology spillover effect plays a sound promotion role in the overall independent innovation of high-tech industries; secondly, for the research results of heterogeneous sub-sectors of high-tech industries, the spillover effect of foreign R&D in the native can obviously promote the output of innovation achievement, after incorporating absorptive capacity into the research category, the effect of international technology spillover on the independent innovation of heterogeneous sub-sectors is not consistent; absorptive capacities of some industries cannot promote the realization of international technology spillover effect and absorptive capacities of another industries have promoted the realization of international technology spillover effect. This paper has played a positive role in the development of overall high-tech industries and sub-sectors from "introduction-imitation" mode to "introduction-absorption and re-innovation" mode.