The invention discloses a biphase heavy-duty thrust bearing, belonging to the technical field of bearing manufacturing of engineering industry. The biphase heavy-duty thrust bearing is characterized by using a bidirectional bearing mode of roller and hydraulic. The biphase heavy-duty thrust bearing comprises a sealed mechanism and a bearing mechanism, wherein, the sealed mechanism comprises a left sealed case and a right sealed case, the bearing mechanism comprises a left bearing pad, a right bearing pad and a bearing roller, and the gaps between the left bearing pad, the right bearing pad and the bearing roller are filled with liquid oil pad. The biphase heavy-duty thrust bearing has the characteristics of reducing the radial design space of the bearing and reducing the radial dimension of the bearing, and can satisfy the requirement of axial heavy-duty bearing capacity.