Local　Climate　Zones　(LCZ)　can　effectively　create　the　quantitative　relationship　between　urban　climate　and　urban　spatial　form　and　reveal　the　spatial　variability　of　urban　internal　thermal　environments.　LCZ　is　a　research　method　of　urban　thermal　environment　and　has　attracted　a　lot　of　attention　at　present.　Therefore,　this　paper　applies　LCZ　to　study　the　spatial　characteristics　of　urban　thermal　environment　and　its　inter-/intra-zonal　variability　in　Fuzhou　City,　a　recently　called　＇Stove　city＇　in　China.　Furthermore,　the　planning　strategy　for　the　improvement　of　the　urban　thermal　environment　in　Fuzhou　is　proposed.　This　study　reveals　that　the　main　urban　area　in　Fuzhou　is　dominated　by　compact　mid-　and　low-rise　buildings,　which　are　distributed　in　a　concentrated　manner.　In　addition,　the　LCZ　has　obvious　inter-zonal　variability　of　land　surface　temperature　(LST).　Large　low-rise　building　(LCZ　8)　has　the　highest　LST　(41.56　),　followed　by　Compact　low-rise　(LCZ　3)　and　Heavy　industry　(LCZ　10)　with　LST　of　40.90　and　40.39　,　respectively,　while　Dense　trees　(LCZ　A)　and　Water　(LCZ　G)　have　the　lowest　LST　with　average　LST　of　29.94　.　At　the　same　time,　the　intra-zonal　LCZ　variability　also　exists.　We　divides　the　main　urban　area　into　the　second　and　third　ring　zones　and　analyzes　the　LST　inter-zonal　difference　within　each　LCZ　category.　It　can　be　found　that　the　main　LCZ　building　types　have　an　inter-zonal　difference　between　0.5　and　1.5　.　The　configuration　of　environmental　factors,　such　as　vegetation　and　water,　buildings　layout,　and　proximity　effects,　are　the　main　causes　of　intra-zonal　LCZ　variability　of　LST.　There　is　a　significant　negative　correlation　between　building　height　and　LST　(r=-0.858,　p　©　2022,　Science　Press.　All　right　reserved.