[Objective] The coordinated relation between the productive-living-ecological functions of Guangxi Zhuang Autonomous Region land space was explored to provide a scientific basis for the coordinated development and regulation of the region.[Methods] The multifactor comprehensive evaluation method was used to evaluate the utilization degree of the productive-living-ecological function from 2009 to 2018, and the coupling coordination model was applied to analyze the change characteristics and coupling coordination relation among the three founction.[Results] ① From 2009 to 2018, the score of the production-living-ecological function showed an upward trend, among which the life function changed the most and the rising range of each prefecture level city was not the same. ② The coupling index of the production-living-ecological function of Guangxi's land space was growing slowly, the distribution of the coordinated development degree was uneven, and the rising span of coordination levels of different cities was different. ③ The spatial distribution of productive-living-ecological function coupling coordination in the western region was larger than that in the eastern region, and that in the coastal area was greater than that in the inland area.[Conclusion] The productive-living-ecological function of Guangxi's land space has been greatly improved, and the development speed in each city is different. The spatial differentiation shows the characteristics of being high in the northeast and southwest, and low in the northwest and southeast, and there is a certain relation between the production and life functions. The positive interaction of the productive-living-ecological function of Guangxi's land space is becoming increasingly strong, and the spatial differentiation is evident from the west to the east with the characteristics of a gradual increase. The imbalance of development among cities is significant.