Computer liquid level automatic controller

The utility model discloses a computer liquid level automatic controller, which comprises an automatic control box, a water inlet pipe, a motorized valve and a liquid level probe, wherein the motorized valve is connected with the automatic control box via a control line and is arranged on the water inlet pipe; a control unit, an automatic computer and a signal processing device are arranged in the automatic control box. The signal line of the liquid level probe is connected with the signal processing device, and the liquid level probe is arranged below the liquid level of a water tank. The control unit of the computer liquid level automatic controller of the utility model can automatically control the actual opening value of the motorized valve so as to control the supplementing water quantity according to the water level in the water tank. When the water level in the water tank is low, the needed supplementing water quantity is great, and the motorized valve has a large degree of opening. When effluent water and influent water in the water tank are balanced, the motorized valve does not need to move. The water tank reaches an optimum water supply state when water-level fluctuation in the water tank is minimal.