Strata　behavior　and　control　in　inclined　coal　seam　face　are　studied　with　the　following　three　methods:field　monitoring　of　strata　behavior　is　carried　out　at　a　working　face,　model　test　on　equivalent　material　is　made　along　dip　direction　of　face　and　both　strata　movement　and　stress　redistribution　are　analyzed　and　described,　overlying　strata　movement　and　fracture　are　modeled　by　discrete　element　method　(DEM).　The　following　conclusions　may　be　drawn:　(1)　Inclined　dip　angle　of　coal　seam　leads　to　asymmetry　of　the　movement　and　fracture　of　overlying　strata　as　well　as　the　abutment　pressure　distribution;　(2)　The　gob　is　filled　with　caved　debris　differently;　the　lower　end　is　fully　packed,　whereas　the　upper　end　is　however　in　vacant　condition.　In　the　dip　direction,　the　roof　is　supported　by　the　caved　debris　quite　differently,　which　results　in　differentiate　roof　deflection.　The　roof　at　the　lower　part　will　not　break,　but　will　certainly　break　at　the　upper　face　end,　which　leads　to　intensive　strata　movement　in　the　upper　end;　(3)　Roof　movement　is　much　more　remarkable　in　inclined　coal　seam　than　that　in　gently　inclined　seam.　It　is　therefore　strongly　recommended　that　the　supports　in　longwall　working　face　be　set　with　higher　stability　to　keep　them　sound.