The ascension of cultural discourse power is gradually improving as the cultural discourse system develops． The new development concept of“innovative，coordinated，green，open and shared”provides a systematic guiding ideology for the development of China in the new era． The leading role of new development concept has extreme significance not only for the social and economic development，but for our discourse system of cultural construction，as well as promoting our cultural discourse． In the context of insisting on cultural self-confidence，the five thoughts of the new development concept were systematically expounded on the five dimensions of its role in the promotion of the discourse power of culture，and the research on the promotion of the discourse power of culture was used to demonstrate the deepening interpretation and expanding application of the connotation of the new development concept under the background of the ideological discourse power of socialism with Chinese characteristics．