Dense file cabinet

The utility model relates to the technical field of file cabinets, and discloses a dense file cabinet which comprises a cabinet body, supporting legs are installed on the lower surface of the cabinet body, an auxiliary frame is installed on the right side face of the cabinet body, fixing pins are arranged on the outer side face of the auxiliary frame in a penetrating mode, a connecting frame is installed on the upper surface of the cabinet body, and a push rod motor is installed on the inner wall of the rear side of the connecting frame. And a movable column is connected in the connecting frame in a sliding manner. According to the dense file cabinet, the information frame is controlled to move upwards to drive the placing frames to move upwards along the placing boxes, so that the inserting rods move upwards along the placing boxes, then files are searched from the placing frames moving upwards, and therefore an operator can gradually reduce the searching range from a plurality of files more conveniently; an