In this paper

DMC（Disaster Monitoring Constellation）’s applied technology and character of DMC+4 Micro-satellite data are emphasized with study aims at international DMC’s applied technology and the condition of the natural disaster in our country. Micro-satellite is used for preventing from disaster

demuring to disaster and curing disaster. Micro-satellite ground system integration’s technology

technology of ground segments integration

integration of spacecraft-ground operation

management and control system are studied. It will help Micro-satellite technology in our country. Remote Sensing technology

satellite constellation technology

technology of ground segments integration

integration of spacecraft-ground operation and mechanism innovation are promoted more. Developing work of our country’s disaster constellation is promoted

inspecting to all kinds of disasters dynamic and real-time come true ultimately.