Technology -overflow in international trade can drive the technology in country of fall behind increasing greatly. Through analysis of the influences in comtrade between China and Russia and technology-overflow's efficacy, this article reveals that through comtrade, there exists technology-overflow from Russia to China. And the overflow drives technology increasing in China.The separate international trade quantities of the two affect the comtrade mainly. Through analysis the modulus of technology -overflow, it reveal that China not only can adopt the technologies from the comtrade, but also can make use of those technologies to improve the technology increase, which can reduces the technology gap between the two.The technology-overflow from comtrade can promote technology increase and which can make the economy of China overtake the trader. Modal and data verify that the main way of reducing technology through the technology-overflow is increasing the salary of labors. |