The invention discloses a field snail processing and cleaning device, comprising a cleaning box, a water storage tank and a rack, wherein the rack is positioned at the side of the water storage tank;a top plate is installed at the top end of the rack; a drive motor is installed at the right end of the upper plane of the top plate; the left end of the drive motor is connected with a transmission shaft; a driving cam and a drive bevel wheel are installed on the transmission shaft; a sliding rail is arranged at the side of the driving cam; a sliding block is installed in the sliding rail, and amovable rod is connected with the bottom end of the sliding block; a fixing sleeve is installed in the middle of the cleaning box and extends into an inner cavity of the cleaning box; the movable rodis arranged in the fixing sleeve in a penetrating way, and a filter screen plate is installed at the bottom end of the movable rod. The field snail processing and cleaning device has the beneficial effects that the field snail processing and cleaning device can be used for effectively treating deposited dirt and floating stains and enables the deposited dirt and the floating stains to be taken away from the cleaning box by means of flowing of water flow, so that the residual stains are reduced during every flushing.