The invention relates to a hydraulic control device used for titanium product machining. The hydraulic control device comprises a machine base, a machine base oil tank, a hydraulic device, a material striking mechanism, a stroke switch device and a control device, wherein the hydraulic device comprise a main oil cylinder, a liquid charging tank, a hydraulic rubber pipe, a liquid charging tank rubber pipe and an adjustment pressure device; the adjustment pressure device comprises an adjustment pressure gauge and an adjustment pressure valve; the adjustment pressure gauge is arranged on the hydraulic rubber pipe; and the adjustment pressure valve is arranged below the adjustment pressure gauge. According to the hydraulic control device, the adjustment pressure gauge and the adjustment pressure valve are arranged, and the pressing rate of the main oil cylinder is controlled through the adjustment pressure valve; the service life is long; hydraulic impact is small; operation is simple; and operation on a workpiece by a hydraulic press is more precise. A fan is arranged on the machine base oil tank, so that a radiation effect is good; the service life of the oil tank is prolonged, so that the service life of the hydraulic press is prolonged; production cost is greatly lowered; and product quality and production efficiency are improved.