The utility model provides a high pressure resistant hydraulic packer, which is high in overpressure resistance and can be mainly applied to the continuous production. The packer mainly comprises an inner central tube, an outer central tube, a hydraulic anchor seat, a piston outer cylinder, an upper piston, a lower piston, three sections of rubber cylinders and slips. The top of the outer central tube extends into a small cavity formed by the hydraulic anchor seat and the inner central tube. The middle-upper parts, the middle-lower parts and the lower parts of the inner central tube and the outer central tube are orderly sheathed with the piston outer cylinder, the rubber cylinders and the slips positioned at corresponding positions. The upper piston and the lower piston are arranged inside a cavity formed between the lower end of the piston outer cylinder and the outer central tube. The tail part of the upper piston and the top part of the lower piston are partially overlapped with each other. The hydraulic packer adopting the above structure is able to withstand an internal and external differential pressure of at least 70MPa.