The invention relates to an identification method for user trusted behaviors under the internet environment. The method includes the following steps that (1) a user behavior trusted identification set is established; (2) according to the established user behavior trusted identification set, identity authentication is carried out on users logging in a system, the users are allowed to have access to the system if the users pass identity authentication, and otherwise the users are forbidden to have access to the system; (3) trusted identification before the behaviors continues to be carried out on the users who pass identity authentication, if identification is succeeded, trusted identification before the behaviors of the users succeeds, the users are allowed to have access to the system, and if trusted identification fails, the step (4) is to be carried out; (4) dynamic trusted identification is carried out on the user behaviors when the users have access to the system; (5) after access to the system is ended by the users, a server side updates the user behavior trusted identification set and trust levels of the users, namely, data updating after the behaviors is carried out. The method can be widely applied to the internet application field with high security requirements.