Abstract: The construction of a new power system is an important cornerstone to achieve high-quality social and economic development, and the information technology led by a new generation of general artificial intelligence is deeply coupled with energy and power science, providing an important guarantee for the digital transformation of the new power system. In order to explore the development direction of the power system under the tide of the large-model era, this paper firstly systematically combs the current development status of the digital intelligence of the power system and the difficult problems encountered under the new scenario requirements. Then, the application prospect of large-model technology with deep scene analysis and language description, represented by multi-modal large-model, in power system is discussed. The application results in several typical scenarios are analyzed, the feasibility of large-model technology is proved, and the opportunities and challenges faced by large-model technology in relevant power scenarios are further summarized. Finally, some suggestions on how to integrate large-model technology closely with power system are proposed. The research results are expected to provide a reference for the development of digital intelligent technology in the process of digital transformation of new power systems, helping to improve the quality and efficiency of energy and power field.