Steam　generating　heat　pumps　(SGHPs)　offer　a　promising　alternative　to　coal-fired　boilers.　To　address　the　lack　of　general　optimization　strategy　of　autocascade　SGHP　(ASGHP)　for　variable　operating　conditions　and　variable　cycle　configurations,　this　paper　models　an　ASGHP　with　the　addition　of　an　IHX　and　the　use　of　steam　injection　instead　of　the　injector　whose　performance　is　more　sensitive　under　variable　operating　conditions.　The　general　optimization　strategy　of　ASGHP　was　analyzed　and　proposed　using　the　advanced　exergy　analysis　method　to　evaluate　the　feasibility