The ultra-low saturation magnetization(Ms) ferrite garnet In∶BiCaVIG single crystal was successfully grown by the accelerated crucible rotation technique. Crystal structure, micro morphology, magnetic properties were systematic investigated. The results show that the In∶BiCaVIG crystal are well crystallized and belong to body-centered cubic structure. The Curie temperature of sample is 104 ℃, the 4πMs is 60 G and the Ms deviation is±20 G, which are slightly better than similar products of the US Microsphere company. The linewidth(ΔH) of sphere samples reduces obviously by chemical polishing and the minimum ΔH can be up to 5.8 Oe.The behaviour of ΔH is related to the uniform corrosion of the stree layer caused by chemical polishing， which reduces the ΔH value.In addition，the linewidth of ultra-low Ms samples are obviously larger than that of undoped BiCaVIG samples which is mainly related to the contribution of the Ms.