A wireless screen projection method for a wireless network including a receiver that includes a first input module and at least one transmitter, includes: switching, using the receiver, to a preemption enabled mode in response to a first trigger signal received by the receiver that is generated by the first input module in response to a user's first operation on the first input module; and in the preemption enabled mode, sending, using the receiver, a projection instruction to a target transmitter in response to a screen preemption request sent by the target transmitter. The projection instruction is to trigger the target transmitter to send audio and video data of a terminal device connected to the target transmitter to the receiver through the wireless network, and the receiver is to transmit the audio and video data to a display device connected to the receiver.