Folk finance has experienced a long history of development in China, and the state has gradually standardized its policy from the initial suppression. Folk finance plays an important role in promoting economic growth and increasing the main income of small and medium-sized enterprises and farmers. However, it is not fully incorporated into the national financial supervision system, so the folk finance is lack of standardization in the development process in China. Therefore, based on Marx’s theory of interest-bearing capital, with a “runway”incident in Wenzhou as an entry point, this paper reflects the lessons in China’s folk financial development process, accumulates experience in China’s folk financial development process, and learns from the experience in the international folk financial development, in order to guide the healthy development of China’s folk finance.