In order to analyze the stress distribution pattern of the working surface of the 13021 working surface of Ningxing Mine, it was proposed to use the field measurement method for analysis. Firstly, the field measurement plan was designed, and the scientific design of the point layout, point density and depth was made. It can be seen from the results of the analysis that with the advancement of the excavation surface, the operation process had different effects on the development and evolution of the coal body stress. In the area of plastic damage of the coal body, the coal body was further loosely damaged, which causes stress release and stress distribution again here.