The invention discloses a gesture recognition method based on a Wi-Fi signal. The method comprises the steps of extracting a gesture signal (GS) to be recognized, and matching the GS to be recognized with a plurality of template gesture signals, thus obtaining a matching distance between the GS to be recognized and each templates gesture signal, wherein a gesture represented by the template gesture signal corresponding to the minimal matching distance is accordant with the gesture presented by the GS to be recognized; and therefore, the generation of a large number of redundant data or the extraction error of the gesture data which cause the recognition error and the slow operation of the system are effectively avoided.