[Objectives] Home range are areas covered by individuals for foraging, courtship and reproduction and other daily activities. Animal home range is affected by seasonal and temporal changes, and such changes reflect the impact of the environment on animals, and are also a manifestation of animals’ adaptation to the environment and selective use of habitat. The use of home range by birds is a visual manifestation of their spatial use behavior, and studying this will help to deepen the understanding of birds’ spatial use behavior. The Saxual Sparrow (Passer ammodendri) is a typical bird of desert environment, and the characteristics of the activity area of this flock of finches and its influencing factors are the focus of this study. The home ranges of Saxual Sparrows were studied using the radio tracking technique in Gansu An’xi Extreme-arid Desert National Nature Reserve in northwest China from May to October in 2017 and 2018. [Methods] In this study, mist nets were used to capture individuals, then we measured body condition indicators and determine their personality. The home range of Saxual Sparrows was studied by radio tracking, which was monitored during and after the breeding period. The kernel density estimation was used to estimate the home range，independent sample t-test was used to compare the home range of individuals with different personalities. The generalized linear model (GLM) was used to examine the body condition factors that may affect the home range of Saxual Sparrows. [Results] In breeding season (n = 16), the home ranges of females and males estimated with fixed kernel (90%) methods were 23.88 ± 4.50 hm2 (Mean ± SE, n = 9) and 32.36 ± 7.24 hm2 (n = 7), respectively, and those with fixed kernel (60%) of females and males were 3.92 ± 0.70 hm2 and 5.55 ± 1.55 hm2, respectively. There was no significant difference in the home ranges between females and males during the breeding season (Table 1). In the post-breeding periods (n = 2), the home ranges of females and males estimated with fixed kernel (90%) were 123.86 hm2 and 272.40 hm2, respectively, and those with fixed kernel (60%) were 23.68 hm2 and 64.88 hm2 respectively. The estimated home ranges (95%FK, 60%FK) in the breeding seasons were significantly smaller than those in the post breeding season in both females and males (Table 1, Fig. 1 and 2). The home ranges of shy individuals were significantly smaller than those of bold individuals (Table 2). Moreover, we found no significant correlations between individuals’ home ranges and their body conditions. [Conclusion] The different home range sizes of the Saxual Sparrow between females and males in the breeding season were possibly related to the sexual division of labor in incubation and brood rearing, and/or the patchily distributions of suitable habitats in the desert environments. When the Saxual Sparrow enters the breeding season, it will center its activities on the nest, while after the breeding season, it tends to live mainly in clusters, and the home range increases significantly.