China　joined　the　Paris　Agreement,　and　the　global　2　degrees　C　and　1.5　degrees　C　warming　targets　will　be　supported　by　China.　In　order　to　achieve　these　targets,　China＇s　CO2　emissions　need　to　be　cut　deeply　by　2050.　The　present　paper　presents　studies　from　the　integrated　policy　assessment　model　for　China　(IPAC)　team　about　the　impact　on　China＇s　economic　development　of　deep　cuts　in　greenhouse　gas　(GHG)　emissions,　in　order　to　realize　the　Paris　climate　change　targets.　With　the　requirement　of　deep　cuts　in　GHG　emissions　in　China,　China＇s　economic　development　will　also　be　impacted　in　moving　toward　a　low-carbon　or　zero-carbon　emission-based　economy　by　2050.　This　means　the　Chinese　economy　needs　a　strong　transition　over　the　next　three　decades,　a　relatively　short　time.　All　sectors　in　the　economy　need　to　seek　ways　to　reduce　GHG　emissions,　and　this　could　change　activities,　industry　processes　and　technologies　in　order　to　make　the　deep　cuts　in　GHG　emissions　happen.　This　is　the　meaning　of　the　economic　transition　toward　to　a　low-carbon　economy.　The　findings　of　the　present　paper　include:　a　significant　transition　in　the　energy　supply　sector;　a　high　rate　of　electrification　in　all　end-use　sectors;　and　a　technology　transition　in　the　transport　sector.　Transitions　will　also　occur　in　the　traditional　industrial　sectors,　including　steel　making,　cement　manufacture,　and　the　chemical　sector.　The　availability　of　low-cost　renewable　energy　could　change　the　allocation　of　industries,　which　could　potentially　have　a　strong　impact　on　regional　economic　development.　Deep　cuts　in　CO2　emissions　in　China　need　not　be　a　burden　for　economic　development,　as　the　IPAC　results　show　there　will　be　a　more　than　1.5%　increase　of　gross　domestic　product　by　2050　in　the　deep　cut　scenario　compared　with　the　baseline　scenario.