The　main　technical　routes　of　coal　utilization　include　high-parameter　coal-fired　power　generation,　partial　pyrolysis　and　gasification　of　coal,　in　which　coal　converts　chemical　energy　into　other　forms　of　energy　through　combustion,　pyrolysis　and　gasification.　To　compare　the　different　coal　utilization　process　of　energy　transfer,　loss　and　transformation　rules,　this　article　considers　the　energy　quantity　and　quality　of　size,　the　energy　potential　analysis　model　is　established,　and　the　energy　potential　matching　analysis　is　carried　out　for　a　supercritical　boiler,　the　exergy　efficiency　of　coal　pyrolysis　and　gasification　was　calculated　to　be　90.95%　and　84.94%　respectively.　From　the　perspective　of　exergy　analysis　and　energy　potential　analysis,　the　matching　degree　of　energy　potential　in　different　coal　utilization　processes　was　compared　to　provide　a　basis　for　the　construction　of　a　new　efficient　coal　utilization　system.　©　2021,　Science　Press.　All　right　reserved.