In order to reveal the high-quality level of fiscal revenue growth in the Chinese Pearl River Delta cities, this paper first constructs a Dynamic Equilibrium Index model. The model is based on the classical DEA model frame and includes two optimization indicators: maximum value and minimum value. It is compatible with stringent and loose evaluation standards, which can be weight adjusted according to the actual needs. This model belongs to the optimal dynamic planning algorithm and can be widely used to evaluate the production level. Then, the fiscal income, GDP, disposable income and employment population in the Pearl River Delta cities for nearly 10 years were taken as the variables of the above model, among which GDP, disposable income and employment population serve as the input variables, and fiscal income as the output variable. The results show that Shenzhen has been far ahead of the other six cities, followed by Guangzhou, Zhuhai, Foshan, Dongguan, Huizhou and Zhongshan. The results fully demonstrate the principle that the high-quality level of modern urban fiscal revenue growth depends on the proportion of advanced manufacturing, high-tech industry and modern services. Conclusion: Shenzhen is undoubtedly the city with the fastest growing fiscal revenue in the Pearl River Delta, because Shenzhen has high proportion of advanced manufacturing and high-tech industries.