Embodiments of this application disclose an antenna power control method and an electronic device. The specific solution is: obtaining, by a first sensor, statuses of at least two detection channels, where each of the detection channels corresponds to one status, the status is any one of a first state and a second state, the first state indicates that a value of capacitance between an antenna corresponding to the detection channel and a human body is greater than a first threshold, and the second state indicates that the value of the capacitance between the antenna corresponding to the detection channel and the human body is less than the first threshold; determining, by a first driving module, a first range value based on the statuses of the at least two detection channels; and controlling, by the processor, transmit power of the at least two antennas based on the first range value.