File sorting box convenient for fixing files

The utility model discloses a file sorting box convenient for fixing files in the field of file sorting and storage, which comprises a box body, a sliding plate fixedly connected to the inner cavity wall of the box body, a drawer slidably connected to the sliding plate, a handle fixedly connected to the drawer, a caulking groove arranged on the inner cavity wall at the lower end of the drawer, and a pressing rod hinged to the caulking groove. A first spring is fixedly connected between the caulking groove and the pressing rod, an open groove is formed in the pressing rod, a clamping groove is formed in the drawer, a clamping head is rotationally connected to the box body, a clamping sleeve is fixedly connected to the box body, the clamping head is rotationally connected into the clamping sleeve, a rotary knob is fixedly connected to the left end of the clamping head, and a second spring is arranged in the clamping sleeve. The second spring is located between the left end of the clamping head and the inner cav