To master the home range size of reevese’s butterfly lizard and whether there exists a core area in each home range and the intrasexual overlap degree of home range and core area during the breeding season, 13 individuals were tracked by radio telemetry in the period of March to May 2010 and 2011 in the barren slope habitat of Wenchang, Hainan Island, China. The home range size and overlap degree of each individuals were calculated by minimum convex polygon (100% MCP) and fixed kernel (95%, 75% and 50% FK) methods. The results indicate that the 100% MCP home range of males (14091.6±5718.0m₂) was significantly larger than that of females (253.3±106.5m₂)(t=4.064, df=11, P=0.002). Males had significantly larger 95% FK (10707.8±2388.5m₂) and 75% FK (3282.7±1022.8m₂) home range than females (379.1±74.1m₂ and 172.1±37.9m₂). The home range length of males (205.8±52.5m) was significantly larger than that of females (25.0±2.0m) (t=5.781, df=11, P=0.034). There existed a apparent core area in the home range for all individuals, males (1380.5±429.1m₂) had significantly larger core area than females (80.2±18.5m₂) (t=5.088, df=11, P<0.001), and the ratio of core area to 100% MCP home range of males (10.9±3.9%) was significantly lower than that of females (33.3±6.1%) (t=-7.834, df=11, P<0.001). There were significant linear correlations between 100% MCP home range and SVL of males (n=10, r=0.815, P=0.004) and females (n=3, r=0.998, P=0.044), and between 100% MCP home range and body mass of males (n=10, r=0.683, P=0.029). The 100% MCP home range overlap degree of males (0.26±0.17) was significantly lower than that of females (0.66±0.02) (t=-3.372, df=34, P=0.002), and the core area overlap degree of males and females was 0.02±0.02 and 0.01 respectively.