Multiple fingers on one side and a floating thumb on the other, do not simply remove the multiple fingers, make sure you make the most of it! Before this baby’s parents came to me, they had been to other hospitals, and the advice they got was to remove the floating bunion and do bunionization. Later, after seeing a TV report, they found out that one of the babies we had treated was very similar to their baby’s case, so the parents came to me. The parents came to me. After the consultation, we found out that we could indeed use the bunion “moving” surgical plan. What does thumb “removal” mean? It is very simple. It means correcting the polydactyly by utilizing the extra bone of the polydactyly and performing a bone graft to rebuild the metacarpal bone of the floating thumb. The surgery went well, but when it was time for functional reconstruction, the epidemic was so severe that the baby could not come to the surgery. Under special circumstances, we kept in touch with the parents, who started passive activities at home as we requested. The parents did a very good job, and after the epidemic, the baby came to the hospital for functional reconstruction. Around three to four weeks after the operation, the baby started to do functional exercises. At that time, we designed different exercise programs for the baby, and the parents of the baby cooperated very well and practiced them one by one at home for the baby. At the time of follow-up, the baby’s thumb was functioning very well, and he could hold thicker pens and pinch smaller objects. Therefore, when we are faced with a case like floating thumb combined with polydactyly, we should not simply remove the polydactyly, but make full use of the removed polydactyly by doing a better bone graft to give the baby a functional first metacarpal bone, thus giving the baby’s thumb a new function.