Storage box

The utility model provides a storage box which comprises a box body provided with a containing cavity. The first partition plate assembly comprises two oppositely-arranged first partition plates, the two oppositely-arranged first partition plates are arranged in the middle of the containing cavity so as to divide the containing cavity into a first cavity body and a second cavity body in the vertical direction, and the second cavity body is located above the first cavity body; the ends, away from each other, of the two first partition plates are rotationally connected with the box body. A guide groove is formed in the side wall of the containing cavity in the vertical direction, the guide groove extends to the end face of the box body to form an opening, the second partition plate is inserted into the guide groove through the opening, and the second partition plate at least divides the second cavity into a first containing chamber and a second containing chamber in the first direction; and the cover body is co