The present invention provides a method, a system, a server, and a terminal for canceling a Push message. The method includes: receiving a cancel request that carries a Push ID after a Push message is sent; and canceling the Push message according to the cancel request. The server includes: a first judging module, adapted to judge whether a Push message is sent to a first receiver terminal; and a sending module, adapted to send a cancel request that carries a Push ID to the first receiver terminal if the Push message is sent to the first receiver terminal. The terminal includes: a receiving module, adapted to receive a cancel request that carries a Push ID after a Push message is sent; and a canceling module, adapted to cancel the Push message according to the cancel request. The system includes the server and the terminal. Through the embodiments of the present invention, a Push message sent to a receiver terminal can be cancelled.