The utility model discloses a hydraulic buffer oil cylinder which comprises a cylinder body, a cylinder head arranged on one end of the cylinder body, a guiding sleeve arranged in the cylinder body, a piston rod, a piston and a plurality of dampers, wherein a plurality of oil holes are formed in two ends of the cylinder body, the dampers are correspondingly arranged in the oil holes, so that the impact caused by inertia forces when the piston of the oil cylinder moves to two end points is effectively prevented or reduced, the application range of the buffer oil cylinder is improved, the whole structure is simple, and replacement and maintenance are convenient, and the processing and manufacturing costs of the oil cylinder are lowered.