The Paodaoling gold deposit regarding as an independent prophyry gold deposit is firstly found in Anqing-Guichi ore district within the middle-lower Yangtze River polymetallic metallogenetic belt. One the study of fission tracks, the authors analyze the characteristics of structural evolution in the Paodaoling gold deposit. The results show that the mean track lengths range between 11.9±1.8 μm and 13.2±1.6 μm, respectively, indicating that intrusions are influenced by tectonic-thermal events in late stage and controlled by the temperatures of annealing belts in long time. There are unimodal characteristics in the histogram of track lengths.