Water and soil loss prevention and control device

The invention relates to the field of water and soil loss, in particular to a water and soil loss prevention device which comprises connecting edges, the connecting edges are connected end to end through connecting pins to form a prevention frame, connecting grooves are formed in the outer ends of the connecting edges, and the connecting grooves are mutually spliced through connecting clamping blocks to form the prevention device. A connecting inserting groove is formed in the inner wall of the connecting edge, a partition plate is inserted into the connecting inserting groove, and a water dripping assembly is installed on the partition plate; a water outlet is formed in the connecting edge, a fixed filter screen is mounted in the water outlet, and a movable cleaning mechanism is mounted in the connecting edge; the movable cleaning mechanism comprises a one-way screw rod, and a movable filter screen is connected to the one-way screw rod; the inner end of the one-way screw rod is arranged in the sealing cover,