Digital model based region security analysis method

The invention relates to the field of airplane design, and specifically to a digital model based region security analysis method. The analysis method comprises the following steps: step 1, performing visual partition on airplane regions; step 2, establishing a region equipment set; step 3, establishing an electronic model machine; step 4, making region security criteria; and step 5, performing region security analysis. According to the digital model based region security analysis method, the dangerous sources are integrated into the product model in the digital mode, so that the dangerous factors for the airplane can be found vividly in time in designing the airplane so as to take security measures; and the region security criteria are embedded in a software for realizing the automatic region security analysis and examination on each region of the airplane so as to find possible-occurring unsafe factors and to make an item list with potential safety hazards, and the parts with the potential safety hazards are improved, so that the analysis method has the advantages that the time loss caused by the later design changing is avoided, the design period for the airplane is effectively shortened, the working efficiency is improved, the analysis method is high in operability, and the like.