China 's internet business is growing Explosively from the 2000s. According to China's economy growing, the penetration of using PC and mobile for internet reached 80%.Internet users also grew market of nearly 700 million people. China's Internet business is represented by BAT Baidu, Alibaba, Tencent that have led the internet industry. Each company has grown in search engine, e-commerce, while above the industry leader in the social network market share of nearly 80% in the background. However, the growth in each sector of the company since 2008, will reach its limit. starting with Tencent 2004s, Baidu 2005s, Alibaba 2014s is listed on Hong Kong Stock Exchange and NASDAQ, the New York Stock Exchange. And to expand its business based on the richer capital. No. 1 social network company Tencent in china was argued share of the second largest e-commerce company JingDong and tencent extend her areas in e - commerce industry. Alibaba will check the Tencent to launch a dedicated social network Aliwangwang. Baidu is also moving busily to expand the area in social networks and e-commerce. Three years ago, the Chinese Internet industry is composed of BAT and medium-sized IT companies. and M & A small and medium-sized IT companies, which was facing a transitional situation of the Internet industry. China's Internet business environment is an essential areas for the expansion of foreign affairs of our country in large and small businesses.