This　paper　examines　whether　and　how　green　manufacturing　enhances　corporate　environmental　performances.　We　find　that　the　green　manufacturing　policy　significantly　improves　firm　environmental　performance.　Mechanisms　analysis　show　that　green　manufacturing　will　affect　corporate　environmental　performances　through　fostering　corporate　green　innovation,　relieving　financing　constraints,　and　promoting　environmental　information　disclosure.　The　impacts　of　green　manufacturing　on　corporate　environmental　performances　are　more　pronounced　in　non-state-owned　firms,　firms　with　lower　environmentally　regulated　level,　heavily　polluting　firms,　and　largescale　companies.　Finally,　we　find　that　the　green　manufacturing　policy　can　also　improve　firm　overall　ESG　performance.　This　paper　contributes　to　the　growing　literature　on　firm　environmental　behavior　and　proposes　tailored　policy　implications　for　the　government　to　address　the　challenges　of　green　development.