Small and micro enterprises are an important part of China’s national economy, and the Chinese government attaches great importance to their important role in promoting supply-side structural reform, promoting high-quality development, and building a modern economic system. The difficulty of financing is the main factor restricting the development of small and micro enterprises. Poor debt financing, lack of shareholder support, operational characteristics of small and micro enterprises, deleveraging policies, Sino-US trade frictions, etc., are the main reasons for the financing difficulties of small and micro enterprises. Measures such as standardizing the operation of small and micro enterprises, improving the financial service system, improving the management system, improving the mortgage guarantee ability, and enhancing the risk identification ability can be taken to alleviate the financing difficulties of small and micro enterprises.