Taobao is one of the largest online retailing platforms in China, in this work, the advantages of C2C platform brought to Taobao, the operation mode of Taobao are discussed and the main revenue model structure of Taobao is constructed. The research shows that the C2C platform provides flexibility, low barrier to entry and relatively lower cost for both consumers and sellers. The operation mode is based on membership system while the revenue model mainly consists of payment revenue, service fee, and advertising revenue. The revenue model of Taobao provides a representative and successful revenue model for the consumer-to-consumer platform.