Objective: To analyze the efficacy of laser surgery in treating retarded eruption in children.Method: Sixty-three children (age:7-13 ,30 boys and 33 girls)were selected and according to the random number table divided into three groups: Laser surgery group (group A), electrosurgery group (group B), and routine surgery group (group C).The total operative time, the duration of pain after gingival excision, and VAS pain intensity scores, gingival healing time, and intraoperative coordination were all recorded . Pain intensity was assessed using a Visual Analogue Scale (VAS) score (0 to 100mm). At six months during the follow-up, this physician checked and recorded the periodontal indicators of permanent teeth, including gum index (GI), plaque index (PLI), and probing depth (PD).Results: All teeth erupted normally in three groups after treatment, showing normal pulp and periodontal tissue. There was no significant difference in operative time, pain duration, pain intensity, healing time between group A and group B. There was a significant difference in total operative time, pain duration, pain intensity, and healing time between electrosurgery group (group B) and routine surgery group (group C) (P<0.05).There was a significant difference in total operative time, pain duration, pain intensity, and healing time between laser surgery group (group A) and routine surgery group (group C) (P<0.05).Periodontal indexes, including gingival indexes, plaque indexes, were examined in three groups at six months after treatment by the same periodontist. Then, the efficacy of the three methods was compared.Conclusion: Laser surgery and high-frequency electrosurgery has favorable efficacy, less pain, and higher operability. However, in the use of the electric knife, the paste flavor may discomfort the children, make them less cooperative, and prolong the procedures.