System as Solution to "Three RurualIssues”: New-Type Cooperative Economy and Inclusive Finance ） This study sorts out the basic concepts of farmer cooperative economics, introduces various international experiences and examples of farmer cooperative economics that can be referenced, and explores the forms, characteristics, and position of the trinity cooperative economic model integrating production, supply and marketing, and credit. The book also elaborates on specific measures for implementing the trinity cooperation system to serve agriculture, rural areas, and farmers. For the first time, the author systematically explains the theoretical framework of the trinity cooperative economy: “integration of the three cooperative functions,” promoting the synergy of specialized cooperation and community cooperation; “integration of the three types of cooperative organizations,” which consolidates the foundation of inclusive financial services through compatible design; and “integration of the three-tier cooperative system,” forming a multi-dimensional and composite business system that achieves vertical and horizontal integration. The innovative breakthrough of the book lies in its integration of cooperative economy and inclusive finance, considering credit cooperation as a “mechanism” rather than an “institution.” It also offers a comprehensive solution for integrating financial institutions with mutual aid cooperation mechanisms, aiming to fully leverage existing financial infrastructure and payment systems. Furthermore, the “Two Mountains” concept of green development, especially the “Two Mountains Bank” (Ecological Bank), and the resources related to “deposit and withdrawal” and trinity cooperation system are interlinked and mutually reinforcing.