The disordered and rampant local tax incentives have interfered with regular business competition and resource allocation, and whether they have the rationality of existence has also become an urgent problem to be clarified. In China, the government has undertaken a new round of policy adjustment to comprehensively sort out and standardize tax incentives, trying to realign value-oriented tax competition among local governments. Thus, this paper examines the real effect of standardizing tax incentives using China's State Council documents Nos. 62[2014] and No. 25[2015], with the measurement of abnormal tax burdens and abnormal fiscal subsidies. The result shows that this round of policy governance has maintained the steadiness of the overall tax burden and fiscal subsidy, and only abnormal tax burdens and fiscal subsidies have been reduced through structural adjustment; In addition, it has also taken into account the difference among regional economic development. The governance in the Midwest is generally lighter than in the East. Meanwhile, the effect of governance among different property companies has presented a reduced tendency as "state-owned enterprises -- local state-owned enterprises -- private enterprises".