In the spring of 2009, an investigation was conducted on the relationships between shorebirds and macrobenthos in the Sheyang Estuary of Yancheng Reserve from the viewpoints of shorebirds bill length and foraging strategy. The high, medium, and low tidal flats without plants, intertidal zone with Spartina alterniflora, and the bank of creek without S. alterniflora were selected as the test habitats. In the study area, Bivalve and Crustacean were the main macrobenthos, whose distribution was basically the same as the distribution of shorebirds. The densities of the shorebirds with a bill length of >50 mm were significantly positively correlated with that of Crustacean, while the densities of the shorebirds with a bill length of <25 mm were significantly positively correlated with those of Bivalve and total macrobenthos. No significant correlations were observed between the densities of the shorebirds with a bill length of 25-50 mm and those of several forms of macrobenthos. The density of visual continuous shorebirds was positively correlated with that of Crustacean, and the density of tactile continuous shorebirds was positively correlated with the densities of Bivalve and total macrobenthos. However, the density of pause-travel shorebirds had less correlation with those of several forms of macrobenthos. The percentages of the shorebirds with a bill length of >50 mm and 25-50 mm were positively correlated to the percentages of epifauna life forms, but negatively correlated to the percentages of infauna life forms, whereas the percentages of the shorebirds with a bill length of <25 mm were positively correlated to infauna and negatively correlated to epifauna life forms. The percentages of the shorebirds with visual continuous and pausetravel foragingstrategies were positively correlated to the percentages of epifauna and negatively correlated to infauna life forms, whereas the percentage of the shorebirds with tactile foraging-strategy was positively correlated to infauna and negatively correlated to the epifauna life forms, but the correlations were not significant.