Provided are an application acceleration method and an application acceleration device. The application acceleration method includes invoking, by a control center, a process monitoring class to monitor start and end of a process. Process information on a process sent by the process monitoring class is received after the process monitoring class monitors that the process is started and confirms that the process requires to be accelerated. A service class is invoked based on the process information, where the service class monitors multiple states of the process, and executes a task in each of the multiple states of the process until the process is in an end state.