 The paper proposes a new approach to evaluate the performance of sustainable microfinance groups lending using single-valued neutrosophic numbers, SVNN. This approach is based on the hamming distances of single-valued neutrosophic sets, SVNS, maximizing deviation method, MDM, and structuring single-valued neutrosophic numbers, MABAC. The results show that this approach can be used to evaluate the performance of sustainable microfinance groups lending. This article was authored by Huiran.