The existing studies about regulatory reform for small business primarily focused on institutional analysis. As an effort to overcome this limitation, this study analyzed 246 actual regulatory reform cases of OSMB Ombudsman. Analytical framework was derived from regulatory reform theories and literature review. The framework included stages, means, and categories of regulatory reform, as well as contents, level of intervention, and business cycle. According to the results of the analysis, it can be seen that individual regulation improvement is still focused on the standard relaxation of command and control regulations as well as procedural or administrative simplification. On the other hand, there are few or almost no examples of regulatory improvements related to new approach such as the use of alternative regulations, the application of regulatory flexibility, and the introduction of negative regulatory system. In terms of intervention level, regulations at the level of guidelines, manuals, and planning also accounted for a considerable proportion, confirming the need to identify and improve regulations that are not included in regulation registry system. Based on the findings, it is necessary to utilize the new approach more positively at the level of individual regulation improvement. The introduction of a negative regulatory system, regulatory reform at the level of manuals and guidelines, and rationalization of social regulations are required.