Jinggezhuang Mine was in late mining period, with coal resources drying up, second mining area, boundary coal, coal pillar in mining area started to be mined, which led to spontaneous combustion hidden trouble in original retracement mining area, with characteristics of diversity, complexity, based on the spontaneous combustion rule in contraction retracement stage, through strengthening technical management, spontaneous combustion detection and prediction of mining area and old chamber, strengthening the comprehensive technical measures management, reduced the happening of the fire accident.