SSZ-13,　a　CHA-type　aluminosilicate　zeolite,　has　attracted　substantial　attention　recently　due　to　its　extraordinary　physicochemical　properties,　and　Cu-modified　SSZ-13　has　been　commercialized　as　a　selective　catalytic　reduction　(SCR)　catalyst　for　controlling　emissions　from　diesel　engines.　In　this　work,　the　Cu&Zn　dual-metal-modified　SSZ-13　zeolite　catalyst　(Cu&Zn-SSZ-13)　was　elegantly　synthesized　in　a　one-pot　(OP)　manner,　and　the　prepared　material　exhibits　good　NH3-SCR　activity.　Impressively,　Cu&Zn-SSZ-13(OP)　has　greater　hydrothermal　stability　than　Cu-SSZ-13　catalysts　prepared　by　other　means.　The　characterization　data　(obtained　by　XPS,　H-2-TPR,　NH3-TPD　and　EPR　techniques)　in　this　work　revealed　that　the　Zn　introduced　by　a　one-pot　method　would　not　only　help　optimize　and　disperse　the　isolated　Cu2+　species,　providing　good　SCR　activity,　but　also　form　[Zn-OH]-Z,　[Cu-O-Zn]-Z,　and　[Zn-O-Zn]-Z　complexes.　Further　DFT　calculations　confirm　that　these　complexes　are　much　more　stable　than　single　Cu　ions　under　hydrothermal　aging,　and　these　Zn-containing　species　can　function　as　anchors　to　stabilize　the　SSZ-13　framework.