Abstract: [Purpose/Significance] From scratch, grass-roots libraries have developed into grass-roots cultural positions in the new era. Their attributes and functional positioning have richer meaning than in history with the development of the times. Accurately positioning their attributes and functions in the new era is conducive to giving full play to their cultural service functions, and is related to the smooth promotion of rural revitalization and having firm cultural self-confidence. [Method/Process] This paper uses a variety of research methods to observe and analyze, starting from a historical perspective, and based on the attributes and functions of grass-roots libraries in the new era. Using the method of literature investigation, this paper analyzes academic research on grass-roots libraries since the founding of new China from two aspects of research objects and research topics. By combing the relevant literature, it reviews the development history of grass-roots libraries in China by dividing them into six stages according to the time clue, and summarizing the development characteristics of these libraries in each stage. By observing their development history, it summarizes and analyzes the characteristics that the attribute and function of grass-roots libraries are constant in essence, the core has not changed, but its connotation and extension will deepen and expand with the development of the times. Combined with the current realistic environment of grass-roots libraries, this paper observes the attributes and functional positioning of grass-roots libraries in the new era through qualitative analysis and functional analysis. [Results/Conclusions] With the changing needs of the times, the attributes of grass-roots libraries in the new era have been expanded from three dimensions: kinetic energy, mission and ways of thinking. In terms of kinetic energy, the comprehensive coordination of various internal and external development factors has become the main driving force for the development of grass-roots libraries. In terms of mission, "rural revitalization and cultural self-confidence" has become the expression of the new era of "enlightening people's wisdom and disseminating science" in grass-roots libraries. In terms of ways of thinking, the focus is to open up the closed state between industries and business format with a digital way of thinking, and stimulate the vitality of grass-roots libraries through the mode of cross-border connection, multiple integration and symbiosis with villages (grass-roots). The functions of grass-roots libraries become richer because they integrate into the needs of the times. In addition to the traditional cultural service function, grass-roots libraries have become the basic platform for cultural and tourism integration, the forward position for cultural rejuvenation of agriculture, the demonstration center with local characteristics, the cultivation center for the cultivation of new farmers, the most extensive cultural position for strengthening cultural self-confidence, and an important position for rural spiritual civilization. The follow-up research will be carried out to analyze more practical cases and help grass-roots libraries further excavate and enrich their functional attributes in the new era.

Key words: rural revitalization, cultural confidence, integration of culture and tourism, grass-roots libraries, public cultural service