Jinjiazhuang Mine, as an integrated mine, upper coal seam coal resource decreasing rapidly, top coal caving technology was adopted, all collapsing technology dealing with roof, with protective coal pillar avoiding coal under river, road, railway and village, solid compaction automatic filling and mining technology was adopted to eliminate impact pressure and goaf gas accumulation. Filling mining made advantages for gob side entry retaining, eliminating protective coal pillar, the mining recycling rate was improved more than 85%, realizing safe and efficient mining.