The invention discloses a stain resistant anti-clamping hydraulic slide valve which aims to realize self stain retaining and stain holding so as to enable the hydraulic slide valve to have the stain resistant anti-clamping capacity and improve the working reliability of the hydraulic slide valve. The stain resistant anti-clamping hydraulic slide valve comprises a valve body (1), a valve hole (3),a valve element (2), an oil inlet (12) and an oil outlet (11), wherein the valve hole (3) is formed in the valve body (1); the valve element (2) is mounted in the valve hole (3); the oil inlet (12) communicates with a left under cut groove (4); the oil outlet (11) communicates with a right under cut groove (5); an under cut groove magnetic ring (6) is mounted at the position, close to the valve hole (3), of the right side of the right under cut groove (5); a pressure equalizing groove (9) is formed in the valve element (2); and a pressure equalizing groove left magnetic ring (7), a pressure equalizing groove right magnetic ring (8) and a pressure equalizing groove bottom magnetic ring (10) are mounted in the pressure equalizing groove (9).