Abstract: Equity crowdfunding, as an Internet financing method, is related to the development of small and micro enterprises. It has become an increasingly difficult problem as to how to effectively control the control of enterprises in equity crowdfunding. Therefore, in order to coordinate the relationship between equity crowdfunding and the control of small and micro enterprises, and ensure that equity crowdfunding financing can be standardized and operated well, it is necessary to carry out system design, that is, from the balance of equity crowdfunding mode of government and market, crowdfunding starting with two important relationships between shareholders and founding shareholders, the paper analyzes the legal obstacles existing in the current equity financing model for small and micro enterprises. This paper attempts to learn from the US JOBS bill, and improves the crowdfunding financing model related guarantee system by relaxing the issuance conditions, introducing the exemption system, establishing a mandatory information disclosure system, and designing the scientific shareholding structure and the equity exit mechanism.