Cultural self-confidence is the internal driving force and spiritual source for the prosperity of the country and the nation. The cultivation of college students' cultural self-confidence is a basic project related to the future development of the country and the nation. Using the supply-side reform concept, focusing on the fundamental and source of the cultivation of college students’ cultural confidence, through research and analysis, it is found that the current college students’ cultural self-confidence cultivation has problems such as short supply, insufficient effectiveness, single subject, and complex environment. From the perspective of the supply side, explore how to make good use of the stock. Optimize incremental and diversified supply; people-oriented, precise supply; enrich paths, effective supply; beautify the scenery, infiltrate supply and other cultivation paths, and continuously improve the pertinence and effectiveness of the cultivation of college students' cultural confidence.