Along with paradigm shift of the supply mode of public cultural services from government monopoly supply under planned economy system to multi-agent supply under market economic system , the supply of public digital culture resources is also facing new problems and challenges. The main types of public digital culture resources supply are divided into government supply, market supply, volunteer supply and supply of cooperation. At the present stage the problem of public digital culture resources supply in China mainly includes government is the single supplier (subject level); the supply is insufficient (object level), and there is a lack of shared supply (intermediate level). The two logic conflicts are the root internal cause bringing forth the problem of digital resources supply, which are logic conflicts of national dominant logic and local autonomous , bureaucratic achievements supreme logic and the citizen demand oriented. So it is necessary from three aspects to discuss operational mechanism of the public digital culture resources supply:the government level (cultural governance,plural subject and fusion innovation), the public level (cultural diversity and participating provision), the mechanism level (diverse cooperation, the government purchase and cultural crowd funding ).