The utility model discloses a pair of hydraulic shears. The device comprises a supporting frame, a sliding groove, a hydraulic cylinder, a fixed handle, a sliding block, a sliding sleeve, a stop blockand a shearing device. a fixed handle is fixed on one side of the support frame through welding; a sliding groove is formed in the inner wall of one side of the supporting frame, a sliding block is correspondingly arranged in the sliding groove, a sliding sleeve is fixed to one side of the sliding block through welding, a hydraulic cylinder is fixed to one side of the sliding sleeve through bolts, one end of the hydraulic cylinder is connected with the supporting frame, a stop block is arranged in the center of one side of the supporting frame, and a shearing device is fixed to the bottom ofthe sliding sleeve through welding. The shearing device is composed of a supporting shell, a spring column, a fixing block, a connecting rod, a fixing rod, a clamping block, an anti-skid rubber gasket, a first moving block, a first shearing block, a second shearing block, a second moving block and a shearing blade, the first shearing block is fixed to one side of the first moving block through welding, and the hydraulic shear has the advantages of being high in practicability and convenient to clamp.