The invention relates to the field of hydraulic equipment, in particular to a hydraulic element tightening tool for a full-hydraulic bulldozer. The hydraulic element tightening tool for the full-hydraulic bulldozer comprises a base body and a working head; a heat dissipating hole is fixedly mounted on the inner surface of the front end of the base body; a switch knob is movably mounted on the side, near the heat dissipating hole, of the outer surface of the front end of the base body; a support leg is fixedly arranged on the lower side, neat the heat dissipating hole, of the outer surface of the lower end of the base body; a hydraulic joint is fixedly mounted on the outer surface of one side of the base body; a push-pull handle is fixedly mounted on the outer surface of the other side of the base body; and an antiskid pad is fixedly mounted on the outer surface of the push-pull handle. The hydraulic element tightening tool for the full-hydraulic bulldozer is provided with a safety joint, a finger fixing sleeve and a protection bracket for preventing the phenomenon of hydraulic leakage, improves the equipment stability, is firmer in holding of equipment, prolongs the service life ofthe equipment, and achieves better application prospect.