Abstract: Accurately understanding the spatial distribution of straw burning points in Hebei province, we can provide support for the realization of straw burning monitoring, the development of banned burning work and the improvement of environmental quality. Based on MODIS L1B data, MODIS standard fire point product MOD14, and national straw burning fire point daily report data, the improved MODIS fire detection algorithm is adopted, and the IDL language is used to obtain the space segmentation information of straw burning fire point, and space and Quantitative accuracy analysis. The research shows that the fire point is mainly concentrated in the southern part of Hebei Province, especially Xiangtan, Shijiazhuang, and the number of cockroaches; the algorithm is fast, and the obtained straw burning point data has certain detection accuracy and reliability, and the monitoring of straw burning has certain practical.