Map and graphic Fire-Fighting C³ system (MGFC³S) is an advanced Fire-Fighting C³ system controlled by a micro-computer system. (MGFC³S) has been implemented in CHINA and actually put into practical use for the first time. The design of the system is based on C³I theory and technology. Using maps at different level,the system has very high performances and powerful functions，with less money than other ones abroad. This paper outlines the overall design ideas and some major technical problems.