Base on the data of 204 domestic companies in Suzhou region, this paper analyzes the relationship of external technology acquisition mode and technological capability. Results suggest that FDI spillover effect has a positive effect on technological capability, and technology learning process acts as an absolutely mediator effect. This study stresses the import effect of technology learning in the relationship of external technology acquisition and technological capability development of domestic company and points out that there is no significant relationship between technology import and technological capability.