Abstract:Since the late 1980s, information technology capital has been widely applied in enterprises. A large number of academic achievements study on the relationships between information technology capital and performance. This article reviews classical literature and identifies influence mechanism among them, so as to better guide its application. The whole text is mainly divided into introduction, information technology capital substitutability and its impact on accumulation, the effect of substitution and accumulation on enterprise performance. The analysis results show that substitution is an important source of accumulation. Furthermore, both affect performance from three aspects such as production efficiency, productivity and profit. Finally, in view of existing status and problems, the author propose further research direction and management recommendations.