Introduction: This project is about the expenditure behavior of the 10 of the G20 countries. The G20 (or Group of Twenty) is an international forum for the governments and central bank governors from 19 countries and the European Union (EU). G20 was been founded in 1999 with the aim to discuss policy pertaining to the promotion of international financial stability, it has expanded its agenda since 2008 and heads of government or heads of state, as well as finance ministers and foreign ministers, have periodically conferred at summits ever since. It seeks to address issues that go beyond the responsibilities of any one organization. (Reference: Wikipedia) Data in this project: The 10 countries: United States, China, Japan, Germany, India, United Kingdom, France, Brazil, Italy, Canada. The 6 years: 2011, 2012, 2013, 2014, 2015 and 2016. In this report, I focus on the behavior of expenditures on Education, Healthcare and Military. Conclusion: 1. The expenditure of Healthcare takes the largest part of all the three items, which is up to 65.5%. 2. The expenditure of Military is always the least. 3. All the countries increase the percentage of the GDP on Healthcare. 4. All three expenditures have a high correlation with GDP, and the correlation between education and GDP is the highest. Resource links: •https://stackoverflow.com/ •https://data.worldbank.org •https://developers.google.com/chart/interactive/docs/gallery •https://www.w3schools.com/