The invention discloses a cleaning and recycling system for an agricultural land membrane. The cleaning and recycling system comprises a feeding conveyer belt, a bale opener, a discharge conveyer belt I, a sanding machine, a discharge conveyer belt II, a uniaxial machine, a screw conveyer I, a sedimentation tank I, a screw conveyer II, a crusher, a friction cleaning machine, a sedimentation tank II, a screw conveyer III, a dehydrator, a collection system and a control system. According to the cleaning and recycling system, automatic feeding can be achieved; the sanding machine is added, most silt in the land membrane is removed in advance, a cutter of follow-up crushing equipment is protected, and the service life of the cutter is prolonged; forced pressing screws are added in the novel sedimentation tanks, the membrane firstly sinks to the water bottom and then floats up, and silt and the membrane are completely separated; a discharge device performs salvage discharge through discharge rakes, and the possibility that water overflows along with materials is greatly reduced; and the fine-grinding high-speed crusher is placed at the back of the sedimentation tank I, so that the silt in the membrane is decreased to the greatest extent, the service life of the cutter of the crusher is greatly prolonged, and the utilization and maintenance cost is reduced.