The　amount　of　energy　directly　determines　the　speed　and　sustainability　of　economic　development,　but　the　consumption　of　energy　will　pollute　the　environment.　This　paper　analyzes　the　development　trend　of　energy　consumption　and　energy　structure　in　2017-2035　by　constructing　the　LEAP-Beijing　model　from　the　five　major　scenarios　included　benchmarks,　different　economic　growth　rates,　different　industrial　structures,　energy　conservation　and　integration.　The　study　points　out　that　the　energy　consumption　of　the　tertiary　industry　continues　to　increase,　and　the　growth　rate　is　obvious.