The waterbird diversity in Binzhou,Shandong Province was surveyed by line transects and by fixed- spot observation method from March 2008 to April 2009. Sixty-four species of waterbirds,belonging to 7 orders,15 families and 36 genera were recorded. Among these species,one was national first-grade protected in China,and two were second-grade; 10 species ( 15.6% ) of these birds were winter birds,18 species (28. 1% ) were summer birds,28 species (43.8% ) were passengers and 8 species (12.5% ) were residents. Among these birds,39 species accounting for 62. 5% belong to Palearctic realm,6 species ( 9.4% ) are Oriental birds and 18 species ( 28.1% ) are widespread ones. The Shannon-Wiener index of waterbird in Binzhou is 2. 565 5,Pielou Index is 0. 616 9,and G-F index is 0.6137. The largest diversity index occurred in the reservoir named North Sea. Human activity and environmental degradation are the threats to the water birds in this region.