The invention discloses an anticlogging device used for a kitchen washing tank. The anticlogging device used for the kitchen washing tank comprises a first leakage-proof device and a second leakage-proof device, wherein the first leakage-proof device comprises an annular base, a guardrail, a pulling bar, first horizontal blocking rods, a second horizontal blocking rod placing seat and a first longitudinal blocking rod, the guardrail is arranged at the edge of the outer ring of the annular base, the second horizontal blocking rod placing seat is arranged in the inner ring of the annular base, multiple groups of first horizontal blocking rods are arranged inside the second horizontal blocking rod placing seat and are uniformly distributed in a circle, the pulling bar is arranged at the center of multiple groups of first horizontal blocking rods, and the first longitudinal blocking rod is arranged at one end of the first horizontal blocking rods. The anticlogging device disclosed by the invention has the advantages that sundries can be taken out during washing, and a washing process is not hindered; when the sundries are taken out for the first time, discharge of a water source in the washing tank can be effectively accelerated, and after the water source is discharged, the sundries are taken out for the second time, so that the phenomenon that the sundries slip into a water drainage pipeline is effectively prevented.