To evaluate the results of the application of allogenic fibroblasts in patients with extensive thermal burns. Methods. The study included 34 patients with burns over 20% TBSA, treated in the burn ICU. In accordance with the indications for transplantation of fibroblasts, all patients were divided into 4 groups: stimulation of regeneration of superficial burns (n = 10), stimulation of regeneration after meshed skin graft (n = 14), reduction of healing time for donor wounds (n = 6) and acceleration growth of granulations after the escharectomy (n = 4). Results. A positive effect of fibroblast transplantation was found in 7 (70%) patients of the first group, 13 (93%) patients of the second group, 2 (33%) patients of the third group and 2 (50%) patients of the fourth study group. Conclusion. The maximum positive effect of transplantation of human dermal fibroblasts can be observed when performing the meshed skin graft and treating the superficial burns.