Provided are a Voice Activity Detection (VAD) method and apparatus. The method includes that: at least one first class feature in a first feature category, at least one second class feature in a second feature category and at least two existing VAD judgment results are acquired, the first class feature and the second class feature are features used for VAD detection (S102); and VAD is carried out according to the first class feature, the second class feature and the at least two existing VAD judgment results, to obtain a combined VAD judgment result (S104).