This paper applies quantitative and narrative approaches to fiscal and financial policies of Chinese small and medium enterprises (SMEs) in order to study the support effect of macro policies on micro enterprises. As the first researchers to focus on the firm heterogeneity of SMEs' policy effects, we show that the "flood irrigation" supportive policies for SMEs have not achieved the expected "help the weaker" effect. Non-state-owned SMEs and small(micro) enterprises have a low sense of policy gain, which is contrary to some "positive" research conclusions from China. The mechanism study found that "ownership" and "scale" discrimination suffered by non-state-owned and small(micro) enterprises in the financing process are key. We suggest the supportive policies for SMEs should shift from "flood" to "precise drip" irrigation. The policy benefits of non-state-owned, small and micro enterprises need to be emphasized. More targeted policies need to be studied and provided. Our findings shed new light on the formulation of supportive policies for SMEs.
