An optical fiber terminal box configured to be mounted on a guiding structure includes: a box base including two side walls extending in a front-rear direction to form an accommodation space between the two side walls; and an upper cover coupled with the box base. The box base further includes a locking member disposed at an outer surface of each of the two wide walls and configured to lock the optical fiber terminal box to the guiding structure, a cable management member disposed at a front end of the two side walls, and a handle disposed at a front end of the cable management member. When being subject to an external force, the handle drives the locking member to unlock from the guiding structure.