With the development of the times, the durability of the wing wall analysis accuracy and calculation speed demand is increasing day by day. We must consider the transition from manual calculation to the program calculation. The AFAS software of ASRI is developed for military and civilian aircraft durability analysis of practical engineering application. This paper introduces the durability analysis process of wing wall structure by using DFR method calculating program based on AFAS. The result of analysis of the software of the wing panel reliability life is quite similar with the test results. These results suggest that the accuracy of the DFR method can meet the requirement and the software AFAS can be used as a a fast and exact calculation tool of the panel design and analysis.