In　a　heterogeneous　multi-core　system,　the　merits　of　the　task　scheduling　algorithm　have　a　great　impact　on　the　efficiency　of　the　system.　This　paper　implements　a　matching　degree　scheduling　algorithm　based　on　heterogeneous　multiprocessor.　Before　the　actual　scheduling,　the　static　task　feature　value　and　the　processor　core　configuration　feature　value　are　mapped　into　the　same　European　space,　and　the　＇program-core-distance＇　matching　value　is　calculated　by　using　the　WED.　In　the　actual　scheduling,　the　matching　value　and　the　size　of　the　input　byte　are　obtained,　and　the　tasks　are　matched　with　the　processor　under　the　influence　of　the　two　to　determine　the　execution　order　of　the　tasks　on　each　processor.　The　scheduling　method　based　on　OpenCL　framework　is　compared　with　the　traditional　scheduling　algorithm.　It　shows　that　the　scheduling　scheme　implemented　in　this　paper　has　significantly　improved　efficiency　when　executing　tasks.　©　2019　Institute　of　Physics　Publishing.　All　rights　reserved.