File storage device with size-adjustable drawer

The utility model discloses a drawing drawer size adjustable file storage device, which comprises a main body, a separation type drawing drawer and a placing inner frame, the separation type drawing drawer is arranged inside the bottom end of the main body, and the placing inner frame is arranged at the top of the separation type drawing drawer. The separated drawing drawer comprises a drawer body, drawing sliding grooves, a storage bin, separated inserting plates and inserting frames, the drawing sliding grooves are distributed in the two ends of the drawer body, the storage bin is arranged in the drawer body, and the separated inserting plates are distributed in the storage bin. According to the file storage device with the size-adjustable drawing drawer, the multiple sets of partition inserting plates are matched with the inserting frames to be inserted, pulled and pulled away, so that different space sizes in the storage bin are adjusted, different file files can be adaptively placed, a user can convenien