The invention discloses a liquor storing tank for storing liquor. The diameter of the bottom of the tank is smaller than that of the tank body, an empty cylinder is vertically arranged in the tank body, a round hole is formed in a tank cover, and the top end of the empty cylinder penetrates through the round hole and extends out of the tank body. The empty cylinder is slidably connected with the round hole, a piston and a push rod for pushing the piston are arranged in the empty cylinder, and a suction head is arranged at the bottom end of the empty cylinder. A separation plate is obliquely arranged in the tank body, the side wall of the separation plate is attached to the inner wall of the tank body, a through hole allowing the empty cylinder to pass through is formed in the separation plate, a groove is formed in the hole wall of the through hole, an abutting sheet for sealing the through hole is slidably connected to the interior of the groove, and an elastic part is arranged at oneend, in the through hole, of the abutting sheet. An arc-shaped pipe communicates with the tank body, the arc-shaped pipe is integrally formed with the tank body, a filter layer is arranged in the arc-shaped pipe, and the top end of the arc-shaped pipe is located above the separation plate. By adopting the liquor storing tank to store the liquor, the pumped sediment can be separated from the liquor, meanwhile, the pumped liquor is guided into the tank body, and accordingly it is ensured that the liquor cannot be wasted.