The gap in the middle of the incisors is too big for children, which may be caused by the low attachment of the upper lip tie, the gap of the permanent teeth just erupted has not been closed, and there are multiple teeth between the incisors, etc. According to the situation, surgical treatment, temporary observation, orthodontic treatment, tooth extraction and other treatment measures can be chosen. 1. Surgical treatment: If the gap between the incisors is too big due to the low attachment of the upper lip tie, the upper lip tie can be restored to the normal level through tie revision surgery, and the gap between the incisors will be closed gradually. 2. Temporary observation: permanent teeth just erupted will lead to the gap between the incisors is too large, this situation is temporary, can be temporarily observed, with the replacement of teeth will gradually close the gap between the incisors. 3. Orthodontics: If the gap between the incisors is not closed for a long time after the replacement of incisors, orthodontics can be taken to make the gap between the incisors return to normal. 4. Extraction: If the gap between incisors is too big due to supernumerary teeth, the supernumerary teeth must be extracted to facilitate the normal emergence of permanent teeth. Children’s incisors in the middle of the gap may also be other reasons, please go to the hospital in time to check, clear the cause of the disease after active treatment, so as not to delay the condition.