The utility model relates to the field of ammunition launching, in particular to a heat dissipation protective shell for an ammunition locking device seat, which comprises a protective shell, the radiator is installed on the left side of the protective shell, the cooling fan is arranged in the radiator, the cooling fins are arranged at the positions, corresponding to the cooling fan, of the left side of the interior of the protective shell, and the cooling fins are arranged on the left side of the interior of the protective shell. The right end of the cooling fan penetrates through the radiator and the protective shell to be connected with the left sides of the cooling fins, and a limiting sleeve is arranged on the right side in the protective shell. According to the utility model, the heat dissipation protection
assembly is arranged, so that the bullet locking device seat in the protection shell can be quickly cooled and dissipated, and the problems that the follow-up use of the bullet locking device seat is influenced by high temperature generated by high-speed friction after ammunition is launched due to the lack of the heat dissipation protection
assembly of a common bullet locking device seat, and the service life of the bullet locking device seat is influenced are solved. And the service life of the bullet locking device seat is shortened.