Short tongue tie is a congenital developmental abnormality, mainly shortening of the tongue tie and inability of the tongue to protrude out of the mouth, which requires surgical correction first, and then functional rehabilitation such as tongue extension and voice training can be carried out. Short tongue tie can lead to unclear articulation, impaired tongue movement and eating disorders, and can be affected according to the child’s age and symptoms. For example, for children after 2 years old, the short tongue tie affects the anterior extension of the tongue, which can be corrected by tongue tie amputation; for older children, tongue tie lengthening surgery can be chosen for correction. After the corrective surgery, it is necessary to cooperate with the relevant functional training. This includes guiding the child to extend the tongue forward and then to the left and right, this kind of large-scale movement can reduce the generation of postoperative scar, but also to the adaptive changes in the tongue muscle; secondly, it can also be used with voice training, including more speech, singing, etc. The specific training is recommended under the guidance of the doctor. Specific training is recommended under the guidance of the doctor.