The fruit and vegetable washing, cutting and squeezing composite device comprises a rack, a feeding opening is formed in the top of one end of the rack, and a discharging opening is formed in the side wall of the other end of the rack; a bearing mechanism, a conveying mechanism, a juicing mechanism, a cleaning mechanism, a peeling mechanism, a pitting mechanism and a breaking and cutting mechanism are integrated on the rack, and the cleaning mechanism, the peeling mechanism, the pitting mechanism and the breaking and cutting mechanism are sequentially fixed in the direction from the feeding opening to the discharging opening and located above the bearing mechanism. The fruit and vegetable washing, peeling, cutting and juicing composite device can realize washing, peeling, pitting, cutting and juicing of fruits and vegetables, integrates multiple functions, strives to achieve the goals of simplicity and safety in operation, high juice yield and the like, and ensures that original nutritional ingredients of the fruits and vegetables are not damaged at the same time.