The　inter-relation　among　energy,　economy,　and　environment　has　been　a　great　concern　in　our　society.　This　paper　made　an　investigation　on　the　relationship　between　energy　consumption　structure　and　the　output　value　of　the　three　major　industries,　by　using　the　gray　relative　analysis　method.　Results　indicate　that　the　energy　consumption　structure　has　significant　influence　on　economic　growth.　China＇s　energy　consumption　is　still　dominated　by　coal,　and　other　non-renewable　energy　consumption　is　also　popular.　That　mean　the　fossil-fuel　consumption　contributes　most　to　the　CO2　emission.　Therefore,　it　is　important　to　decouple　the　energy　consumption,　improve　energy　efficiency,　and　use　the　renewable　energy　to　reduce　the　impact　of　CO2　on　economic　growth.　Government　should　not　hesitate　to　take　the　＂low-carbon　economy＂　way,　adjust　the　energy　structure,　exploit　and　use　new　energy.