Method, device and system for controlling PC game by mobile device

The invention discloses a method, device and system for controlling a PC game by a mobile device. The method comprises the steps: making response to a game starting instruction triggered by the by mobile device according to a game list, and starting a corresponding game program according to the game starting instruction; acquiring audio and video data of the game program in real time, compressingthe audio and video data, and forwarding the compressed audio and video data to the mobile device through a server, so that the mobile device plays the game program in real time after receiving and analyzing the audio and video data; and receiving key input event information sent by the mobile device in real time, converting the key input event information into a game control instruction, and thenperforming real-time control on the game program according to the game control instruction. By implementing the method and the device, the audio and video data of the PC game can be transmitted to the mobile device in real ti