Assembly protective device used for nuclear fuel assembly transport container

The utility model discloses an assembly protective device used for a nuclear fuel assembly transport container. The assembly protective device comprises protective plates and rib plates. The protective plates are connected with a container assembly bearing part via protective plate supports and support plates. The rib plates are fixedly connected on the protective plates. The protective plate supports comprise top supports and side surface supports and are used for connecting the support plates and the assembly bearing part. The protective plates comprise top support plates and side surface support plates and are used for connecting the protective plates and the supports. The assembly protective device has characteristics of easy machining, easy operation and impact resistance and helps resolve the protection problem of an axial impact load perpendicular to an assembly during a transport process of the nuclear fuel assembly. The embodiment of the assembly protective device is suitable for the nuclear fuel assembly transport container.