In view of the problem that the traditional inert ammunition loading material can not meet the ground accuracy test of external trajectory, a new type of inert material loading with cement as the main raw material was designed. Carry out formula analysis, process design and process test for the filling. The test results show that the strength and density of the new inert material are equivalent to those of explosives, and its loading quality is stable, safe and pollution-free, which can meet the requirements of ammunition identification and quality consistency test.