The time series analysis method is used to analyze the technology spillovers of import trade in China The cointegration test demonstrates that the R&D expenditures of trade partners and China significantly promote China’s technological progress, however, the domestic R&D expenditures’ impact on technological progress is more prominent than the trade partners’; the error correct model analysis shows that there is a certain lagged effect upon the technology promotion of domestic R&D expenditures while there is no lagged effect upon the technology promotion of trade partners. The further Granger causality test shows that the R&D expenditures of trade partners and China are both the Granger reasons of the changes of TFP