In the mobile e-commerce,the smart phone,PDA and other mobile terminals have some hardware limitations,and mobile phone have many different operating systems.For these reasons,the majority of SP often uses“account + password”approach to user authentication.In order to enhance the mobile internet user authentication security,we research a business program what can be certified traceable the identity of mobile internet users from the network operator point of view in this article.We can accomplish user authentication identity through the network layer and physical layer provenance.