Based on the in-depth analysis of the dilemma of the sustainable financial development of my country, the co-inspection method was adopted to conduct an empirical research on the sustainable financial situation of my country's fiscal financial from 2008-2021. The results of the study show that there is no coordination relationship in my country's fiscal, and there is still risk in the middle and long term. Based on this, suggestions are put forward such as stabilizing economic entities to vigorously develop economy, reasonably optimize and prevent the risks facing fiscal expenditure, optimize the expenditure structure to improve the efficiency of financial funds, and improve innovation capabilities. Reference opinions are provided for the coordinated development of China's finance, so that finance can better play an important pillar role in national governance.