The invention discloses a walking jacking sliding shoe mechanism, which belongs to the field of cranes, and is characterized by comprising a sliding shoe clamped on a T-shaped slideway beam, wherein the sliding shoe can move along the length direction of the T-shaped slideway beam, and the middle part of the sliding shoe is hinged with a pull plate; a pressure-bearing support which is fixed to thelower portion of the cross beam, wherein a connecting plate is arranged on the side wall of the pressure-bearing support, the connecting plate obliquely extends downwards, and the lower portion of the connecting plate is hinged to the end, away from the sliding shoe, of the pull plate; and a jacking oil cylinder which can stretch out and be drawn back in the vertical direction, wherein the movable end of the jacking oil cylinder is hinged to the upper portion of the sliding shoe through a fixing assembly, and the fixed end of the jacking oil cylinder is fixed to the pressure-bearing support;the jacking oil cylinder, the pull plate and the connecting plate form a three-connecting-rod structure; when the jacking oil cylinder completely stretches out, the pull plate is in the state of beingperpendicular to the jacking oil cylinder. The problem that when the crane travels, the jacking oil cylinder directly bears horizontal force, so that sealing pieces in the jacking oil cylinder are prone to being abraded and damaged is solved, and the maintenance cost of hydraulic components is effectively reduced.