The competence of small business comes from owner's individual capacity, employees ' capacity and the business system. The business system has the dominant influence on the business competence because of the catalyzer effect in transferring the capacity of the owner and employees to business competence. 中小企业的能力由所有者个人能力、员工能力和企业制度三者构成,由于企业制度在转化两种能力为企业能力过程中的催化剂作用,使得企业制度成为影响企业能力的重要因素。