After China’s economy enters the new normal” era, the structural imbalance problems between fictitious economy and the real economy have become increasingly prominent. Under the driving force of fictitious economy’s excess return rate, the entity sector enterprises hold much more financial assets than before and gradually affect the entity’s main business, which has become one of the stylized facts of China’s economy. Therefore, understanding the impact and mechanism of fictitious economic development on micro-entity enterprises is an important prerequisite and basis for resolving structural imbalances, preventing financial risks, and cultivating new kinetic energy for economic growth. The existing research explores the interaction and deviation between fictitious economy and the real economy from multiple perspectives, but it is not sufficient to discuss the imbalance mechanism between Chinese entities and the fictitious economic structure under the current macroeconomic background. China’s economy has entered a new normal, and new features and new phenomena are constantly emerging, requiring new explanations. With the rapid development of China’s economy, only part of fictitious economy represented by banks has been unable to explain some new problems. For example, the rapidly developing shadow banking system which is outside the supervision is very worthy of attention. In addition, the maturity mismatch and credit mismatch caused by local government financing platforms also affect the real economy and cause structural imbalances. Therefore, it is necessary to further expand the relationship between the two issues, and summarize and extract new models and lessons. Therefore, this paper attempts to examine the impact of the financialization” process of holding financial sector assets on the output and efficiency of the real economy sector driven by the development of fictitious economy under the micro-enterprise level. The paper conducts empirical research through the data of Chinese listed companies. Considering the possibility of endogenous problem, it is found that the rapid development of fictitious economy after 2008 has a significant and long-term inhibitory effect on the real economy. This suppression is mainly reflected in private enterprises and manufacturing industries, and it has a more negative impact on the real economy in the new normal period” of the economic downturn. From the macro-environment perspective, the rapid expansion of shadow banking and the impact of local government financing platforms on the real economy are the main transmission mechanisms for this inhibition. From the perspective of micro-enterprises, arbitrage motives enable entities in the real sector to allocate financial assets, squeeze capital investment and ultimately reduce the efficiency of business operations. These conclusions have important policy implications for clarifying the relationship between the real economy sector and the fictitious economy sector, and the future direction of China’s financial and real estate reform. The paper may have three possible innovations. First, according to the industry and the nature of enterprises, the dynamic relationship between fictitious economy and the real economy is deeply combed, and it is found that the impact of fictitious economy on the various components of the real economy is heterogeneous. Second, given China’s economic development process, from the external and internal dimensions of micro-enterprises, the paper analyzes the impact mechanism of fictitious economic development on micro-entity enterprises. Third, as to the policy factors behind these relations and mechanisms, such as interest rate marketization reform, necessary financial industry policy coordination, and local government soft budget constraints on debt, a preliminary analysis is also conducted. The conclusions obtained by the article provide important inspirations for China to adjust the structural problems of both fictitious and the real economy in the future. The complementary relationship between fictitious economy and the real economy requires certain premise, such as hard constraints of the enterprise budget, and strictly-regulated financial fictitious economy. Therefore, it is necessary to improve the overall financial supervision, and control speculative motives from the source; to encourage the transformation and upgrading of the real economy, vigorously implement supply-side structural reforms, and realize industrial transformation and upgrading through innovation; to regulate local government financing platforms, strictly implement government debt balance management, and improve the local government debt budget management system.