The invention belongs to the technical field of electric power, and particularly relates to an LCC decision-making model of a power transformer in a high-latitude severe cold region considering equipment performance. The method comprises an alpine region transformer performance fuzzy evaluation model and a transformer LCC decision model based on equipment performance. According to the method, thecorrelation between the performance and the cost of the transformer in the high-latitude severe cold region is analyzed, a transformer performance fuzzy evaluation model and a performance-cost correlation model in the high-latitude severe cold region are constructed, the effectiveness of the model is verified by applying actual transformer data, and a new idea and an effective tool are provided for LCC decision of the transformer in the high and cold region. The method comprises the following steps: analyzing a relationship between transformer performance and LCC in an alpine region; An alpineregion transformer performance evaluation model and a performance-cost correlation model based on the fuzzy theory are established, various uncertain costs existing in the transformer LCC estimationprocess in the alpine region are overcome, and the quantitative relation between the transformer performance and the LCC in the alpine region is obtained and verified.