With　flat　heat　pipe　(micro-heat　pipe　array)　as　the　core　component,　a　new　type　of　PV/T-air　collecting　evaporator　and　direct-expansion　PV/T-air　source　heat　pump　system　were　designed　and　built　to　realize　the　functions　of　year-round　water　heating,　winter　heating,　summer　cooling　and　year-round　photovoltaic　power　production.　Experimental　study　on　the　performance　of　heat　pump　system　under　the　weather　conditions　from　March　to　May　in　Beijing　was　carried　out　in　different　operating　models　(S,　SA　and　A).The　experimental　results　show　that　the　COPS　of　model　S,　SA　and　A　is　4.8,　4.2　and　3.8,the　η　of　three　models　is　109.7%,　125.9%　and　32.4%　under　typical　working　conditions,　which　means　under　the　condition　of　solar　irradiation,　the　performance　of　the　multienergy　complementary　system　in　mode　S　and　SA　is　better　than　that　in　mode　A.　The　new　heat　pump　system　has　a　significant　performance,　and　the　experimental　results　provide　basic　data　support　for　its　application.　©　All　Right　Reserved.