Thailand is the most competitive player in the sugar industry of the Southeast Asia,and it is also the world’s second-largest sugar exporter.Hence,the main objective of this research is to identify the significance of the determinant factors in the total sugar export volume of Thailand by considering the annual data from 1995 through 2018.In order to study the determinants of total sugar export volume,some factors such as the sugarcane supply,gross domestic product growth rate（GDP）,Thai consumer price index（CPI）,population size,and domestic consumption of Thailand’s sugar trading partners were considered by investigating their percentage changes.Moreover,the researcher also explores the difference in mean value of total sugar export volume in the period before and after the 2007/2008 global financial crisis.The data collections are from country statistics through USDA GAIN Report（United States Department of Agriculture’s Global Agricultural Information Network）,Thailand Office of Cane and Sugar Board,Food and Agriculture Organization（FAO）,and United Nations COMTRADE.Furthermore,the multivariate regression model and a paired sample t-test were performed in determining the significance of each variable.The results of the regression reveal that,for 24 years,some independent variables are driving the total sugar export volume of Thailand.The total domestic output of sugarcane,GDP growth,growth in population size,and the financial crisis have a statistically significant relationship with the total export sugar volume.However,total cane sugar output,Thai CPI,and importers’ consumption are not statistically significant in explaining the relationship between them and the dependent variable（Total Sugar Export Volume）.Therefore,it can be concluded that some factors have a relevant relationship with Thailand’s Total Sugar Export Volume.Whereas,an improvement in policies and practices is suggested to be highly promoted by the government and concernedly practices by both producers and processors.