Water cooling system of laser

The utility model provides a water cooling system of a laser, which comprises a temperature sensor, a temperature controller, a compressor, a condenser, a throttling valve, a water tank, a water pump and a main pipeline. The water cooling system further comprises a control component, wherein the control component is used for controlling the flow direction of refrigerant; the temperature sensor, the compressor, the condenser, the throttling valve, the control component, the water tank and the water pump are connected in sequence through the main pipeline; an evaporator is arranged inside the water tank; and the temperature controller is electrically connected with the temperature sensor and the control component. Under the action of the temperature sensor and the temperature controller, the flow direction of the refrigerant is controlled by the control component, so that the water cooling system of the laser the temperature control accuracy is improved, the temperature stability of the cooling water is ensured, and the reliable operation of the laser is achieved during the work process.