Abstract: An echo cancellation method, which is applied to an electronic device having a first sound pickup apparatus and a second sound pickup apparatus, are used in a voice communication process to: perform, with use of a first near-end signal d1(k), adaptive filtering on a second near-end signal d2(k) that is delayed, to obtain a first filtering signal e2(k), where the first filtering signal e2(k) is an echo signal with a voice being filtered out and with only an echo being retained; then determine, with use of the first filtering signal e2(k), a signal to be transmitted EE1(k); and send same to a peer-end electronic device.