Objective To explore the effect of anterior mandibular correction with bracketless invisible correction appliance for anterior mandible in children with skeletal class Ⅱ malocclusion and its influence on the facial shape. Methods From January 2020 to January 2022, 66 children with skeletal class Ⅱ malocclusion who received orthodontic treatment in the Feiya Jinxiu Dental Clinic were selected as the research objects. According to the different treatment methods, they were divided into control group (n =33) and observation group (n =33). The control group was treated with traditional functional appliance to guide the mandible, and the observation group was treated with bracketless invisible correction appliance for anterior mandible. The bone, dental, facial type related indicators and overall treatment time were compared between the two groups. Results After treatment, the ANB angle, Wits value and jaw convex angle of the two groups were better than those before treatment (P <0.05), but there was no significant difference between the observation group and the control group (P >0.05). After treatment, U1-NA, U1-SN, L1- NB and L1-MP in the observation group were better than those in the control group (P <0.05). The UL-E and Z angles of the two groups after treatment were better than those before treatment, and those of the observation group were better than those of the control group (P <0.05). The overall treatment time of the observation group was shorter than that of the control group (P <0.05). Conclusion Compared with the traditional functional appliance, the bracketless invisible correction appliance has more advantages in improving the tooth-alveolar bone relationship, adjusting the lip inclination of the upper and middle incisors, improving the profile and shortening the overall treatment cycle in the treatment of skeletal class Ⅱ malocclusion in children. It is worthy of clinical application.