A method includes: receiving an A1 gesture motion of a user, where the A1 gesture motion is not in contact with the electronic terminal device; obtaining, an A1 control instruction corresponding to the A1 gesture motion, where the A1 control instruction is used to control the electronic terminal device; obtaining an A2 control instruction of the user within a preset delay period, where the preset delay period is less than three seconds and the A2 control instruction is used to control the electronic terminal device; and comparing the A1 control instruction with the A2 control instruction, where if the A1 control instruction is consistent with the A2 control instruction, the electronic terminal device does not perform an operation corresponding to the A2 control instruction; and if the A1 control instruction is inconsistent with the A2 control instruction, the electronic terminal device performs the operation corresponding to the A2 control instruction.