[Objective] The multifunctional land use in Jiangxi Province from 2004 to 2017 was analyzed to support regional sustainable land use.[Methods] An evaluation index system was developed, and the multifunctional changes of land use in Jiangxi Province were measured using the TOPSIS model based on the entropy method. The obstacle model was used to analyze the main restrictive factors.[Results] The dynamic degree of land use comprehensive function change in Jiangxi Province from 2004 to 2017 was 297.90%. The dynamic degrees of economic function, social function, and ecological function were 224.37%, 207.14%, and 2 021.61%, respectively. The degree of ecological dysfunction decreased, and the degree of economic dysfunction increased year after year. After 2010, the main obstacle factors were the comprehensive Engel's coefficient, industrial structure, economic density, per capita GDP, wastewater discharge intensity, per capita water resources, and urban registered unemployment rate.[Conclusion] The overall function in Jiangxi Province shows a steady upward trend. However, changes varied between the functions, and the changes in the land use ecological function were the largest. The land use function demonstrated the transition from an economic society to an ecological society. The factors that limit the land use functions vary at different stages, and the main limiting factor is currently economical.