Some children are born with floating fingers, a congenital hand deformity that is best operated on as early as possible at an age when the child is able to undergo surgery, because floating fingers can really affect the child, one by affecting the child’s hand function and the other by seriously affecting the child’s mental health. Many of the children and parents who come to the clinic cannot accept the floating finger thumb surgery, they want to keep the thumb, but they do not want to take the metatarsal bone reconstruction to make the child another traumatic site, now more and more parents want to use the metacarpal bone graft reconstruction surgery to solve their child’s floating thumb problem. This is because SMRT is relatively easy to perform on the child’s hand and does not affect other parts of the child’s body. More importantly, the floating finger metacarpal graft reconstruction (SMRT floating thumb reconstruction) is performed by taking a portion of the child’s second metacarpal bone and reconstructing the first metacarpal bone. This procedure also preserves the child’s thumb without affecting the growth and development of the second metacarpal bone, and the child can undergo the procedure between the ages of 6 months and 1 year. Three to four weeks after the two-stage surgery, parents are able to give their child recovery exercises as explained by the doctor. If the surgery is done early, the function and shape of the thumb will be improved and the child will not have to endure strange looks as he/she grows up. I have come in contact with many children with floating fingers. Smaller children are fine, but older children will realize that their hands are different from other children, and sometimes they are even reluctant to take their hands out, afraid that others will see their hands. Therefore, parents of children with floating fingers must pay attention, when the child can receive surgery, take the child to a professional hospital as soon as possible, to find the right doctor for standardized treatment, the earlier the surgery is carried out, the better the recovery for the child will be.