The invention discloses an automobile engine water pump capable of precisely adjusting the flow. The automobile engine water pump comprises a pump body and a rotor arranged in the pump body, a pump cover is fixedly arranged on one side of the pump body, a partitioning boss and the rotor are arranged in the pump body, the partitioning boss is arranged in the circumferential direction of the inner wall of the pump body, and the interior of the pump body is partitioned into a cold water circulating cavity and a hot water circulating cavity; the rotor comprises an inner rotation shaft, a cold water outer shaft and a hot water outer shaft, wherein the cold water outer shaft and the hot water outer shaft are arranged on the inner rotation shaft side by side; a high-pressure oil cavity communicating with an electronic oil pump is formed in the inner rotation shaft, the peripheral surface of the cold water outer shaft and the peripheral surface of the hot water outer shaft are each provided with detachable blades, a heat insulation groove is formed between the cold water outer shaft and the hot water outer shaft, and the partitioning boss stretches into the heat insulation groove. According to the automobile engine water pump capable of precisely adjusting the flow, two ways of circulation including hot water circulation and cold water circulation can be simultaneously conducted, and the requirements that the cylinder body temperature is high, and the cylinder cover temperature is low are met; the advantages of the electronic oil pump and the advantages of a mechanical water pump are combined, the flow can be adjusted through the pressure of the high-pressure oil cavity, and the engine warming time is short.