Abstract:The transmission - distribution price reform is the core of the new round of electric power system reform. Based on the reviews of the theoretical research on transmission - distribution price reform,the current situation of the regulation of transmission and distribution price in china is investigated. Through the horizontal contrast with the electricity price regulation of the developed countries,the problems existing in transmission - distribution price reform in china are revealed. Finally,according to the actual situation of power grid corporations,the corresponding countermeasures are put forward.