During the breeding seasons of 2010 and 2011, we studied breeding ecology and nest site selection of the Golden Bush Robin (Tarsiger chrysaeus) at Wawushan Nature Reserve in Sichuan Province. Our study area was at the virgin forest of Wawushan Plateau with the altitude about 2800 m. Altogether 26 nests were found, 17 in 2010 and 9 in 2011. The breeding success rates in 2010 and 2011 were 43.8% and 44.4%, with the hatching rates of 52.5% and 60.0%, and brood success rates over 85.7%. There was no significant difference between the clutch size, egg parameters and breeding success between the two years (Table 1). The cavity nests of the Golden Bush Robin were mostly found at the soil slopes along the walking paths (Fig. 1) with the nest parameters shown by Table 2. We measured the nest site selection parameters (such as nest height, distance to path and running water, and vegetation information) and compared them with contrastive samples along the path at a random distance; however, no significant difference was found (Table 3). The Principal Component Analysis showed that the main factors affecting the nest-site selection of the Golden Bush Robin including nest location, moss cover and arbor cover (Table 4, 5). We suggested that the construction of the walking path provided lots of suitable nesting sites for the bird. At Wawushan, the great number of tourists in May severely affected the nest sites distribution of the Golden Bush Robin. We suggested that to limit the number of tourists during the breeding period of birds.