This　work　aims　to　study　the　role　and　current　situation　of　Low-Carbon　Technology　(LCT)　in　realizing　urban　Carbon　Neutrality　goals　and　Sustainable　Urban　Development　(SUD).　This　work　focuses　on　the　three　main　aspects　of　Carbon　Neutrality　by　means　of　investigation:　the　new　energy-supported　LCTs,　building-oriented　Energy　Conservation　and　Emission　Reduction　(ECER),　and　Carbon　Capture,　Storage,　and　Utilization　(CCSU)　technology.　The　research　of　the　past　ten　years　(2013-2022)　is　reviewed　from　the　Web　of　Science,　Google　Academic,　and　other　literature　databases.　Over　20,000　articles　are　selected　by　using　the　keywords　＂Carbon　Neutrality　Technology,＂　such　as　＂IEEE,＂　＂Elsevier,＂　and　other　journal　documents.　Finally,　more　than　150　papers　with　high　citation　rates　and　relatively　novel　research　results　are　selected　for　specific　analysis.　This　work　also　establishes　a　case　study　of　urban　green　development　with　multiple　co-governance　and　a　case　study　of　building　energy　conservation　and　carbon　reduction　solutions.　Finally,　suggestions　are　put　forward　for　achieving　SUD.　China＇s　energy　consumption　and　Carbon　Dioxide　(CO2)　emissions　have　increased　year　by　year,　but　the　Carbon　Peak　has　not　yet　been　reached.　About　85%　of　CCUS　technologies　extract　CO2　from　the　air　and　use　it　for　other　emission　reduction　processes.　In　addition,　the　carbon　storage　time　and　storage　efficiency　need　to　be　improved,　and　the　general　level　can　only　reach　about　60%　of　the　storage　efficiency.　The　secondary　use　of　CO2　by　technology　is　of　practical　significance　to　many　industries　and　must　be　fully　implemented　from　the　perspective　of　the　whole　life　cycle.　Especially　building　energy　consumption　is　a　huge　carbon　emitter　and　poses　a　challenge　for　SUD.　How　to　take　effective　measures　to　control　emissions　is　still　an　arduous　task