Aiming at the status that the diagrams for visibility marker’s are handdrawn at the national weather stations, an automatic mapping system for visibility marker’s diagram was developed, achieving the function of automated making of visibility marker’s diagram for any distance. The system has the functions of observation station information management, target management, mapping panel management, and image output. The user can set the image size, the circle factor and the radius of the circle according to operational requirements. The visibility marker’s diagrams for 1000 m and 50000 m can be synthesized in one diagram, meeting the operation needs of the current minimum visibility observation. The system is highly automated, easy to operate, with high practicability. Widely use of the system will decrease obviously the workload of operational staff.