During two winters of December 2008 to January 2009 and December 2011 to January 2012, we studied the habitat selection of wintering shorebirds at Qinzhou Bay, in Guangxi of south China. We investigated the distribution of wintering shorebirds in different habitat types during the low tide and analyzed the reasons, in order to make effective measures to protect wintering birds and their habitats. Four kinds of habitat were divided in our study area, 1) Mangrove tidal flats, 2) Sandy beach, 3) Salt pan-aquacultural pond, 4) Farmland. In each habitat, 2 lines of 3 000 m were set up for the investgations, with the methods of line transect and fixed-point observation. During the censuses, we walked at a speed of 1-1.5 km/h, and counted the birds within the scope of 50 m on both sides with the help of 8 times binoculars. For data processing, 5 types of indicators were used to measure and analyze the shorebirds'distribution in each habitat, including species, species diversity index, species evenness index, species dominance index and similarity index. Totally 27 species were identified in Qinzhou Bay. The results showed that the shorebird composition and density were different in different weather conditions or different habitats during low tide. Shorebirds structure of different habitats in Qinzhou Bay varied with weather changes. For similarity comparison, during the sunny days, the salt pan-aquacultural pond and farmland had the highest shorebird similarity with the index of 0.92, and the mangrove tidal flats and sandy beach had the lowest shorebird similarity with the index of 0.49. During the wet and cold days, the sandy beach and salt pan-aquaculture pond had the highest shorebird similarity with the index of 0.79, and the mangrove tidal flats and sandy beach had the lowest similarity with the index of 0.52. Our results showed that human activities caused heavy disturbances to the shorebirds, and affected their habitat selection.