The invention discloses a technological bearing disassembly device for material rolling contact fatigue testing, and relates to a bearing disassembly device. The problems that a technological bearinguses a traditional clamping claw type screw feeding bearing disassembly tool, thus an origin of force does not exist, in the disassembly process, an inner ring and an outer ring of the technological bearing are prone to being separated, and consequently, the bearing is damaged are solved. The technological bearing disassembly device comprises a base, a top shaft rod and a pressing plate; the pressing plate is arranged on the base, and a threaded hole is formed in the pressing plate; the top shaft rod is a threaded rod, and the end of the top shaft rod is provided with a handle; the diameter ofthe threaded rod of the top shaft rod is smaller than that of the inner ring of the bearing; the top shaft rod and the pressing plate are in threaded fit; and a through hole corresponding to the topshaft rod is formed in the base, the diameter of the through hole of the base is larger than the inner diameter of the inner ring of the bearing, and the diameter of the through hole of the base is smaller than the outer diameter of the inner ring of the bearing. The technological bearing disassembly device is applicable to disassembly of the technological bearing.