Dangerous sources in the manufactory of the civil explosives are the important factors affecting the level of area safety. A Quantitative Area Risk Assessment (QARA) method and its applications to the planning for dangerous sources were briefly introduced. A model of the method on area risk assessment is developed. The individual and social risk indexes, the acceptable risk levels of individual risk and social risk as well as the calculating procedures are briefly proposed based on the existing criteria of individual risk and social risk from other countries. The detailed steps, main work contents, and general methods concerned and noticed in the quantitative risk assessment procedure are given. These are very helpful to the applications of QARA. The QARA is utilized to assess the manufactory of the civil explosives. The individual risk contour and the social risk chart are obtained after the analysis. The method could not only reflect the distribution of regional risks, but also provide a decision support for the planning and layout of the risk sources in the manufactory of civil explosives.