Plant height is one of the most important plant architecture traits in soybean. In this study, dwarf mutant z110 and its wild type, named Jidadou 5, were used as materials to analyze the traits changes and yield potential of mutant. The results showed that the chlorophyll content and leaf nitrogen content of the mutation significantly reduced, but photosynthetic rate was no significant affected. The plant height, the average inter-node length, the average petiole length of the mutation significantly reduced, but the node number of main stem, branch number significantly increased. After the fourth node, the length of the petiole gradually shortened with the increasing of the number of node. The 100-seed weight of the mutation significantly decreased. The yield per plant, seed number of per plant, pod number of per plant increased significantly, which showed that z110 had a certain potential for increased yield.