Archive management cabinet special for engineering cost

The invention provides an archive management cabinet special for engineering cost, and relates to the field of engineering cost. An archive management cabinet special for engineering cost comprises a base, a case storage mechanism and a cover body, the case storage mechanism is rotationally connected to the top of the base, the cover body is installed at the top of the base and used for covering the case storage mechanism, a through opening matched with the case storage mechanism is formed in the side wall of the cover body, and a rotating shaft is rotationally connected into the through opening in the horizontal direction. At least two bent poking pieces are evenly distributed on the circumferential side of the rotating shaft, concave arcs of the poking pieces face the case storage mechanism, and an opening and closing door is hinged to the side, deviating from the through opening, of the cover body and connected with the cover body through a lock catch. According to the invention, the whole case storage mec