From 1996 to 1998, during the implementation of Terrestrial Wildlife and Plant Monitoring Project in the Three Gorgers Reservoir Area, the Dark-rumped Rosefinch (Carpodacus edwardsii) was found in the Yiziliang area of Kaixian County, Chongqing. We also found the Dark-rumped Rosefinch distributed in the Congping and Liziping areas of Wushan County, however, much lower density than the Yiziliang area. These birds inhibited in high altitude area (1 841﹣2 560 m), with their activities mainly close to the houses of management station in a wilderness area. We often observed these birds pecking on the saliferous wall soil in the Yiziliang area. In order to prevent the ants from invading, during the construction of local traditional dwelling houses, the local people added salt into the mud of the walls. We measured the salt contents of the soil samples from 2 houses of management station (respectively as 12.92 mg/g and 16.84 mg/g) and 3 local folk houses (respectively as 1.31 mg/g, 7.18 mg/g and 0.53 mg/g), and found the salt contents of houses at the station were much higher than those of the local folk houses. We suggested that the artificial salt source might be an ecological factor to maintain the population quantity and habitat quality for the Dark-rumped Rosefinch.