Asbestos hazards have been studied by many people and the hazards become already known wide although it is not referred obstinately. In this country, the use of asbestos was banned completely according to revision of Industrial Safety and Health Law in February of 2009. Especially, more than 82% of imported asbestos is used as building materials, so asbestos containing material with the construction waste will be generated fatally when buildings are demolished. Slate among materials included asbestos is used wide along with economic development by the 1960s. Such slate becomes superannuated, so arsenic acid in asbestos can become a problem. Therefore, change is pushing ahead by the government. In safety control about asbestos enforced at April of 2012, it is obligated to investigate buildings included asbestos beforehand. Although a local autonomous entity has also been enacted an ordinance for proper process of asbestos cement slate, it has just been made slow progress due to problems such as difficulty in pre-investigation, absence of guideline relevant to demolition and dismantling and lack of budget. To solve these problems, in this research, using arcGIS, Priority dismantling area were selected from all asbestos cement slate building in dangerousness of metropolitan area which has wide exposure range because of concentration of population, especially focusing on Daegu metropolitan city.