Objective: To compare the effect of cervical tissue expander implantation in the reconstruction of scar deformity after burn with open and endoscopic assistance. Methods: 30 patients with faciocervical scar deformity were randomly divided into endoscopic group(n=40) and control group(n=40). The operation time, intraoperative blood loss, postoperative drainage, complication rate, hospital stay and complete expansion time were compared between the two groups. Results: Compared with the control group, the average operation time of the endoscopic group was reduced(t=8.09,P<0.05); the intraoperative blood loss and postoperative drainage of the endoscopic group were less than those of the control group, the difference was statistically significant(t=9.97, 5.87,P<0.05); the postoperative hospital stay was reduced, and the difference was statistically significant(t=0.03,P<0.05). Compared with the control group, the incidence of major and minor complications in the endoscopic group was lower than that in the control group(χ2=4.59, 5.17,P<0.05), and the time of complete expansion of water sac in the endoscopic group was reduced(t=3.29,P<0.05). Conclusion The placement of faciocervical tissue expander under endoscope can reduce the operation time, the incidence of postoperative complications, hospital stay and the time to complete expansion. It is worthy of promotion.