The invention discloses an overflow-prevention cement tank used for brick making raw materials. The overflow-prevention cement tank comprises a tank body. A pressure safety valve is arranged on the outer surface of the front end of the tank body. A climbing stair is arranged at the position close to the portion below the pressure safety valve on the outer surface of the front end of the tank body.A discharge valve is arranged on the outer surface of the lower end of the tank body. A water pump is arranged at the position close to one side of the discharge valve on the outer surface of the lower end of the tank body. A high-low material level meter is arranged at the position close to one side of the water pump. A bin body steel frame is arranged at the position close to one side of the high-low material level meter. An overflow pipe is arranged on the outer surface of one side of the tank body. A recycling box is arranged on the outer surface of one end of the overflow pipe. An observation window is formed in the outer surface of the front end of the recycling box. A material outlet valve is arranged on the outer surface of one side of the recycling box. The overflow-prevention cement tank used for the brick making raw materials is provided with a rolling wheel base, the overflow pipe and the recycling box, safety of workers can be increased, the workers can be prevented fromfalling from a great height, the overflow-prevention function is achieved, and better use prospects are achieved.