The article studied an influence of operative treatment on miners in the stage of burn shock, complicated by multi- and combined trauma and how these treatment options have changed the lethality and burn complications rates. All data based on an analysis of retrospective research. A primary surgical treatment of burn wounds was performed using simultaneous grafting by temporary biological cover for superficial burns during the burn shock stage in the main group of patients. For miners of comparison group this strategy hasn’t been applied and they were operated after ending of burn shock. The rate of development of burn sepsis decreased in 3,2 times (p=0,0001), the frequency of pneumonia reduced in 2,91 times (p=0,0001) and toxic encephalopathy - in 1,7 times (p=0,004) in the main group in relation to the comparison group. The authors made a conclusion, that significant reduction of the rate of the most dangerous complications of burns allowed decrease of lethality in patients of main group in 2,6 times in relation to the comparison group. There wasn’t carried out the primary surgical treatment of burns with covering of postoperative wound surfaces by temporary biological material during burn shock stage in comparison group.