The evolution of landforms is controlled by the interaction between tectonic activities and surface processes, and exploring the contribution of both to the evolution of structural geomorphology has always been a hot and difficult point in the study of the evolution of orogenic geomorphology. In recent years, the rapidly developing low-temperature thermochronology has become a powerful method for studying the quantitative evolution of tectonic geomorphology. Therefore, this study uses low-temperature thermochronology method to investigate the exhumation processes and mechanisms of the typical granite gneiss dome in China - Jiangxi Wugong Mountain. We targeted the core of the Wugong Mountain range - the north and south sections of Mingyue Mountain for sampling and conducted apatite fission track analysis. The apatite fission track ages are mainly concentrated at ~65-42 Ma, and the ages on both sides of the mountain show a clear negative correlation with elevation. This may be due to the fact that the exhumation of the Wugong Mountain dome in the Late Cretaceous were mainly controlled by the detachment faults on both sides, while the denudation process in the Cenozoic was mainly affected by surface erosion. This indicates that for relatively old orogenic belts, the spatial distribution characteristics of low-temperature thermochronology ages can be used as an indicator to discern the main control mechanisms of tectonic geomorphological evolution. In addition, according to our thermal history simulation results, the Wugong Mountain area has experienced a rapid exhumation stage in the Late Cretaceous, a slow stage from the Paleocene to the early Miocene, and a relatively rapid exhumation stage since the early Miocene, mainly controlled by regional tectonic activities and climate change, respectively.