The museum is located in an air-raid shelter of the former site of the Ordnance Bureau No.1 Arsenal in Xiejiawan, Jiulongpo District, Chongqing. Through cultural relics, descriptions, scene restoration, and multimedia display, the history of the No.1 Arsenal and the difficult course of development of the national military industry of China are faithfully shown, which revealed the Chinese nation’s unyielding fighting spirit against the Japanese aggression.