Properties of a series of superconducting compounds of nominal composition (Bi2-x,Nbx)Sr2Ca2(Cu3-yNby)Ox(x=0-1.0, y=0-1.0) have been investigated using electrical resistivity, a.c magnetic susceptibility and X-ray powder diffraction measurements. When x =0.2-0.3 or y=0.2, 2223 phase (Tc～110K) in samples is significantly enhanced. The added Nb in the sample with Bi1.7Nb0.3Sr2Ca2Cu3Oy has obvious effect of promoting 2223 phase. When furthermore doping Ba as replacing Sr in BiNbSrCaCuO, it is observed that double-doped Nb-Ba has more evident enhancing the high-Tc phase formation than single-doping Nb. The doped Nb-Ba in sample with nominal composition Bi1.7Nb0.3Sr1.8Ba0.2Ca2Cu3Oy is distinctly favour to formation of 2223 phase. From TGA experiment, the weight of sample doping Nb(Ba) at ～600℃ begin to increase by absorbing oxygen. By XPS of O1s in sample doped with Nb(Ba), the shoulder peak at ～529eV is more evident except for ～531eV as main peak.