Habitat losses and fragmentation is one of the most serious ecological crises that threaten the wildlife all the world. Therefore, it is very important to strengthen the ecological restoration to conserver these endangered species. In the study, we applied 3S techniques to evaluate the change of Plover Birds Foraging Habitat near Bei Dai he region during the past two decades (1997-2006). It showed the range of the birds foraging habitats kept increasing until 1993 which was the tuning point. Then, after 1993 the range of birds foraging habitats kept decreasing. Thus, the curve of the distribution of the most suitable foraging area is inverted u-shaped. In contrast, the curve of the distribution of the unsuitable foraging area is u-shaped. The dense human activities are the main reasons resulted in the significant change of the birds′ foraging habitats.