File management cabinet special for construction cost

The utility model discloses a file management cabinet special for construction cost. The file management cabinet comprises a cabinet body. The cabinet body is divided into an upper cabinet main body and a lower cabinet main body. The upper cabinet main body is of a four-layer structure and specifically comprises a bottom layer, a second layer, a third layer and a top layer. The bottom layer comprises a first supporting plate, the second layer comprises a second supporting plate, the third layer comprises a third supporting plate, the top layer comprises a fourth supporting plate, and the first supporting plate, the second supporting plate, the third supporting plate and the fourth supporting plate are installed on a cabinet frame; sliding strips with the inverse-T-shaped cross sections are arranged at the bottom of the fourth supporting plate and matched with sliding grooves formed in the cabinet frame, the sliding grooves specifically include the horizontal sliding grooves and the vertical sliding grooves, the horizontal sliding grooves are installed on the two sides of the interior of the cabinet frame, the front face of the cabinet frame is installed in the horizontal sliding grooves, an I-shaped sliding block is installed at the tail end of each sliding strip, the bottom edges of the I-shaped sliding blocks are connected with the tail ends of the sliding strips, and the front ends of the I-shaped sliding blocks are matched with the vertical sliding grooves. The file management cabinet is simple in structure, convenient, practical, free of a movable ladder and small in occupied space.