An interaction method and an interaction apparatus are provided. The first terminal device transmits the interface information to the second terminal device in response to the message confirming that the first terminal device is connected with the second terminal device. The interface information is used for generating the interaction interface by the second terminal device. The first terminal device acquires the operation instruction from the second terminal device, and executes the operation instruction to obtain the operation result. The operation instruction is the instruction for operating the interaction interface. The first terminal device generates the update instruction based on the operation result and transmits the update instruction to the second terminal device. The update instruction is used for updating the interaction interface by the second terminal device.