A voice wakeup method includes receiving a plurality of voice wakeup messages sent by a plurality of electronic devices, where each voice wakeup message includes a distance and a wakeup energy value; determining, based on distances and wakeup energy values in the plurality of voice wakeup messages from the plurality of electronic devices, whether energy attenuation of the wakeup word emitted by the sound source complies with an attenuation law of sound energy radiated by a point source; and when determining that the energy attenuation of the wakeup word emitted by the sound source does not comply with the attenuation law of the sound energy radiated by the point source, sending a wakeup forbidding instruction to the plurality of electronic devices.