In order to further understand the technical characteristic of automatic mixing production line of pyrotechnic composition and accomplish the correct quality supervision on this line, combining with performance and theory of pyrotechnic composition and routine quality supervision, introduces the general situation of this line, function and construction of important single device; approaches the technical characteristic of automatic mixing production line of pyrotechnic composition, raises some questions that should be mentioned in quality supervision and lays a theoretical foundation for the requirements of “Soft Inspection”.