RH removable hydraulic packer is a kind of removable hydraulic casing packer. It relies on hydraulic seating and can go down into the well with one or more of them. Packers suitable for mechanical and cable seating are not suitable for inclined and horizontal wells. The packer is composed of a hydraulic anchor, an inner and outer core shaft, an upper and lower piston, a sleeve, a spring and a lock block, three rubber cylinders and a rubber cylinder core shaft with two hardnesses, a slip seat, a slip sleeve, a release sleeve and other auxiliary parts.