The present application relates to the field of communication technology applications. Provided are a context release method, device and system. The method comprises: a terminal sends a context release request to a first base station, the context release request being used for instructing a network side to release a context related to the terminal. The present invention resolves the problem of the complexity of the existing context release process, can effectively reduce signaling interactions between the terminal and the network side, reduces signaling overheads and simplifies the whole process. The present application is used for releasing a context in a mobile communication system.