Based on the urban comprehensive disaster reduction,this paper makes a systematic discussion on the problems of urban safety construction and development.

12,2008,the paper discussed the problems of post- disaster reconstruction planning with the guidance of comprehensive disaster reduction.

Based on its fundamental functions and the structural features, the captioned paper generalizes a few aspects where Geographical Information System (GIS) is applicable to comprehensive disaster reductions, which are exemplified in detail by GIS application in seismic forecast cases.

11 attack, which would be a guiding for the construction of administration system of the urban comprehensive calamity reduction.

Basing on the urban comprehensive calamity reduction,the paper makes a systematic discuss on the problems in the safety construction and development for cities,especially the researches on the safety endurance and Assessment relative to the urban projects and safety planning,as well as the safety Assessment,frame and model building for big projects.

Establishing national integrated disaster reduction strategy and improving catastrophe risk governance capacity;

The author has published a continuous series of four papers about the theory and practice on disaster research in 1991,1995,2002 and 2005,in which the essence and dynamic mechanism of disaster system,the integrated disaster reduction paradigm,the disaster science system and other relevant important issues were deeply discussed.

Nine issues of urban public security and comprehensive disaster alleviation planning;