By thoroughly reviewing international studies on technology convergence and divergence,four kinds of hypothesis are proposed based on patent data Herfindhal Index(HI) measurement.The main finding is that technology convergence does exist,based on patent technology records in China,primarily driven by overseas companies’ strategic behavior,such as field intensiveness,competition during technology maturity session,and patent technology growth. By thoroughly reviewing international studies on technology convergence and divergence, four kinds of hypothesis are based on patent data Herfindhal Index (HI) measurement. The main finding is that technology convergence does exist, based on patent technology records in China, primarily driven by overseas companies’ strategic behavior, such as field intensity, competition during technology maturity session, and patent technology growth.