Green　innovation　is　the　key　to　solve　increasingly　serious　environmental　problems.　Previous　studies　mainly　focus　on　the　effects　of　environmental　regulations　(ERs)　on　local　green　innovation　while　little　research　has　paid　attention　to　the　effects　of　ERs　in　neighborhood,　and　the　impact　mechanism　remains　unclear.　Actually,　the　green　innovation　in　a　region　may　depend　on　the　superposition　effects　of　local　and　neighboring　ERs.　This　study　proposes　a　theoretical　framework　of　local-neighborhood　effects　of　ERs　on　green　innovation,　and　empirically　tests　the　effects　and　mechanisms　based　on　an　examination　of　274　prefecture　level　cities　of　China,　with　different　ERs　and　regions　taken　into　consideration.　The　results　show　regional　differences　in　the　local-neighborhood　effects　of　different　ERs　on　green　innovation　and　further　identify　the　optimum　regional　ERs　intensity.　Moreover,　it　is　also　discovered　that　areas　with　high　intensity　of　ERs　will　foster　the　regional　transfer　of　industries　and　human　capital,　and　further　affect　green　innovation　in　neighboring　areas.　Both　command　and　control　regulation　and　market-based　regulation　restrain　green　innovation　in　neighborhood　through　industrial　transfer　with　the　peak　at　400　and　600　km　economic　urban　circles,　respectively.　And　the　human　capital　is　found　significantly　negative　in　neighborhood　effect　of　market-based　regulation　within　the　600　km　scope.　This　study　fills　a　gap　in　the　literature　of　local-neighborhood　effects　of　different　ERs　on　green　innovation,　which　is　an　extending　of　Porter　Hypothesis　and　will　be　of　great　significance　for　regionally　coordinated　green　innovation　promotion.