Edon gas-liquid mixing pump is a horizontally mounted self-priming gas-liquid mixing pump. It uses a standard click coupling connection. The pump's wetted components are all made of stainless steel. The suction port of the gas-liquid mixing pump can draw in gas by the negative pressure, so there is no need to use a gas compressor and an atmospheric injector. The high-speed rotating impeller agitates the liquid with the gas, so no compressor and mixers are needed. Due to the pressurized mixing in the pump, the gas and the liquid are fully dissolved, and the dissolution efficiency can reach 80 to 99%. Therefore, a high-pressure solution can be obtained without a large pressurized gas tank or an expensive reaction tower. A gas-liquid mixing pump can be used for gas-liquid attraction, mixing, dissolution and direct delivery of highly dissolved liquid to the point of use. Therefore, the use of a gas-liquid mixing pump can improve the efficiency of the dissolved gas production, simplify the preparation device, save the space, greatly reduce the initial investment, save operating costs and maintenance costs.