Site　Microturbine　Generation　(MTG)　is　a　distributed　Generation　technology　with　wide　application　prospect　in　micro　grid.　This　paper　introduces　the　single-axis　micro-gas　turbine　power　generation　system　in　detail　and　studies　its　operation　and　control　in　micro-grid.　In　this　paper,　PSCAD/EMTDC　simulation　software　is　used　to　simulate　the　load　tracking　ability　of　the　micro-turbine　power　generation　system　under　the　island　operation　mode,　and　the　ability　of　the　micro-turbine　power　generation　system　to　stabilize　the　voltage　and　frequency　under　the　two　modes　of　island　and　grid　connection.　The　simulation　results　verify　the　correctness　of　the　micro　gas　turbine　model　and　its　flexible　adjustment　control　mode　according　to　the　needs　of　micro　grid　operation,　which　has　good　operation　characteristics.　©　Published　under　licence　by　IOP　Publishing　Ltd.