Abstract:[Purpose/significance] As one of the core sectors of the national economy, the power supply enterprise"s scientific and technological innovation capability is very important in the national science and technology innovation system. Innovation capability has become a guarantee for the sustainable development of the power industry;[Method/process] Through the research on the innovative models of power supply companies in China and South Korea, based on the comparative study of innovation capabilities, an innovation capability index system for power supply companies in China and South Korea was established, and the AHP method and fuzzy comprehensive evaluation method were applied to the innovation capabilities of power supply companies in China and South Korea. The assessment will be conducted to elaborate the typical characteristics, advantages and disadvantages of the scientific and technological innovation model for the power supply companies in the two countries;[Result/conclusion] Through horizontal comparison studies, the specific proposals for the development of science and technology innovation in China"s power supply companies have been put forward, pointing the way for the improvement of the level of innovation capability of power supply companies in China.