The utility model relates to the technical field of water and
soil loss prevention, in particular to a water and
soil loss prevention device for land protection, an adjusting device comprises long grooves, the long grooves are formed in the surfaces of the two sides of a protection frame, two mounting plates are slidably connected to the interiors of the long grooves, two fixing plates are fixedly mounted on the surfaces of the two sides of the protection frame, and the fixing plates are fixedly connected with the long grooves. A
threaded rod is rotatably connected between the two fixed plates, a rotating wheel is fixedly mounted on the surface of the
threaded rod, sliding grooves are formed in the surfaces of the two sides of the protection frame, two movable plates are in threaded connection with the surface of the
threaded rod, and connecting rods are fixedly mounted between the movable plates and the mounting plates. According to the water and
soil loss prevention device, the problems that an existing water and soil loss prevention device can only be forcibly fixed to the ground through expansion bolts, fixing is not firm, and a slope protection net shakes and even falls off are further solved.