The invention discloses a hydraulic control valve capable of adjusting an opening pressure for hydraulic control. The hydraulic control valve comprises a valve body, a valve element and a water pressure control module. As the water pressure control module is arranged in the valve body of the hydraulic control valve capable of adjusting the opening pressure, the opening pressure of water corresponding to the valve element can be controlled through setting an elastic coefficient and a compression amount of a spring. A preset pressure can be changed by changing the compression amount through rotating an adjusting nut, so that the opening pressure of the valve element is adjusted.