A method of controlling a device includes controlling a processor by a mobile terminal to acquire a voice instruction of a user, controlling an artificial intelligence (AI) module, in accordance with a mapping relationship collection which is between a preset voice command and an instruction code combination information, and an acquired voice instruction, to determine the instruction code combination information corresponding to the acquired voice instruction, where the acquired voice instruction has a plurality of instruction codes and transmission sequence of the instruction codes, and controlling the processor to transmit the instruction codes to a target device in accordance with the transmission sequence, where each of the instruction codes is used to instruct the target device to execute an operation corresponding to each of the instruction codes.