Taobao.com is a popular online shopping retail platform in China. At present, taobao.com has nearly 500 million registered users and more than 60 million regular visitors every day. At the same time, the number of online products per day has exceeded 800 million, with an average of 48000 items sold per minute. By the end of 2011, Taobao's daily trading volume reached 4.38 billion yuan, creating 2.708 million direct and full employment opportunities