This report is based on 10 economic and financial indicators from 47 countries，analyzing the impact of the digital economy on government finances. Through the comprehensive impact of correlation indicators，clustering analysis is conducted on the relationship between digital economy finance and taxation in various countries，including the relationship between the digital economy，GDP，and government finance，the relationship between the proportion of the digital economy to GDP and economic growth rate，and the relationship between government expenditure and government debt. By analyzing the comprehensive impact of various indicators in 47 countries from multiple perspectives，the United States has the highest scores in three indicators：the scale of the digital economy，GDP，and government expenditure. Moreover，the proportion of the digital economy to GDP is relatively high. Although the government debt score is the lowest，the comprehensive score is still very high. China ranks second in terms of the scale of its digital economy and GDP，and its digital economy is growing rapidly with a low debt burden rate，thus narrowing the gap with the total score of the United States. Cluster analysis revealed the characteristics of eight types of digital economy countries，with the United States，China，and Japan each classified independently and without similar characteristics. The other seven groups of countries had certain similar characteristics in indicators such as GDP scale，per capita GDP，government debt，digital economy scale，digital economy growth，the proportion of digital economy to GDP，and government expenditure to GDP. Conduct a comparative analysis of the financial and tax relations in the international digital economy，providing a reference basis for tax system construction and tax collection and management.