Considering the faultiness of technique of Strategic Environmental Assessment, a method, Booming Analysis of Early Warning, is introduced into Strategic Environmental Assessment for urban industry system. The environmental and economic actuality of the urban industry system in Dalian is analyzed in this paper. Based upon the rationales and methods of macroeconomics and booming analysis, and considering the running character of the environment and economy of the urban industry system in Dalian, the booming index system of the environment and economy of the urban industry system in Dalian is constructed. After analyzing appraisal results, boom of the environment and economy of the urban industry system in Dalian is discussed. It is concluded that running status of environment and economy system of urban industry system is well in Dalian. However, several indices are on guard. Therefore, booming adjustment of environment and economy on the decision-making must be paid attention, too.