The utility model relates to an anchor packer who seals rotatory deblocking is sat to hydraulic pressure belongs to oil gas well borehole operation tools field. The packer includes center tube, top connection, lower clutch, slips, piston bush and release cover, the one end of center tube is equipped with the top connection, and the other end is equipped with the C -type ring, the endotheca is equipped with on the center tube of top connection one side, interior putting in has clamped on the slips cone under cone and the slips by cone release axle and key piece A, the slips is equipped with on the slips under cone and the slips between the cone. The packer compact structure, the seat seals, the anchoring, and deblocking mechanism design is exquisite, sit and seal safety, can prevent the premature setting, can easily realize deblocking step by step at a plurality of packers while when used, the problem of multistage deblocking is difficult in the past is solved. The packer can bear the bi -directional pressure that comes from packer top and below simultaneously. Carry out water injection (gas) in specially adapted straight well and the little inclination well, seal between the layer separate, divide annotate divide adopt, multiply test, well stimulation operation use.