Abstract: This paper takes the integrated development of under-forest economy, industry and tourism in Changping mountain, Yongsheng county as the research object, and aims to explore the transformation path from "green waters and green mountains" to "gold and silver mountains." First of all, we analyze the current situation of under-forest economic development in Yongsheng County, pointing out that it is rich in forest resources, with Changping mountain as the core area, but there are problems such as short industrial chain, weak brand effect, and insufficient tourism supporting facilities; then analyze the practical foundation for the integration of under-forest economy, industry and tourism in Changping mountain, including resource endowment, industrial scale, preliminary integration form and policy guarantee, and at the same time clarify the challenges it faces such as single industrial structure, weak infrastructure, insufficient capital investment, and lagging brand promotion. On this basis, it is proposed to use a dual-core development path driven by "forest fungi" and "forest tourism" to build a "three-industry linkage" industrial chain, create a "1+6" demonstration base, promote integration through the "six modernizations model", and convey diversified business formats of collaboration between forest fungi, forest tourism, and bacterial tourism. The research aims to achieve the goal of "rich forests and farmers, strong industries, and beautiful ecology" and provide reference for the high-quality development of under-forest economy in Yongsheng county.