A series of relevant laws and regulations issued require implementation of land use planning for dangerous chemical facilities. Land-use safety planning for major hazard Installations had begun to research in China since 2004[1, 2]. Only the risk of accidents instead of economic, social, environmental objects was considered in those studies. Author carried out some studies on multi-objective land-use safety planning methods for chemical industry park [6, 7].Three-stage optimal method of land-use safety planning for chemical industry park was proposed to reduce the risk of potential accidents of chemical industry park, but also to ensure economic benefits in this paper.