The invention discloses a granular activated carbon water rinsing device which comprises a rinsing tank and a suction filtration tank, the rinsing tank is arranged at the upper end of the suction filtration tank, and the rinsing tank is connected with the suction filtration tank through a pipeline; according to the granular activated carbon water rinsing device, a high-pressure gas is introduced through a high-pressure air valve; high-pressure air three-dimensional rolling rinsing is adopted; clean water is continuously introduced through a rinsing water inlet; sewage flows out from an interlayer of an interlayer net circular truncated cone body through a rinsing water outlet; effluent sewage is intensively collected into a vacuum suction filtration tank, water obtained after suction filtration is changed into clear water again to be recycled, after rinsing of granular activated carbon is completed, water circulation is stopped, the high-pressure air valve is closed, the granular activated carbon is discharged into the suction filtration tank from the bottom of the tank body, redundant water is taken away and dried after being subjected to suction filtration, and the completely-washed granular activated carbon is obtained.