Abstract: Along with the advancement of globalization, more and more multinational companies in developing countries to build a leading market dominant position in the market.As the largest developing country, China's domestic enterprises are facing unprecedented market competition pressure and need to improve the ability of the competition to change the backward market position.This paper studies the construction of latecomer firms’ competitive advantage based on the China’s mobile phone chip market. The study found that, disruptive innovation is more suitable for the latecomer firms who lack of technical advantage compared with independent innovation. In addition,though the analysis of MediaTek,this paper although discusses the construction of latecomer firm’s competitive advantage based on disruptive innovation.The study found that,in the process of the evolution of communication technology in China,the construction of MediaTek’s competitive advantage include opportunity identification, value network reconfiguration and high-end market disruption.