The sauropods are the biggest animals on land in the Mesozoic. They are widely distributed in Jurassic and Cretaceous and evolve very successfully. Sauropod footprint fossils were found from the Early Jurassic to the Late Cretaceous. There are many sauropod footprint fossils were found in three sites in the Early Cretaceous, Huang longgou located the south of Zhucheng, Zhangzhuhewan and Tangdigezhuang located the north of Zhucheng, What are the similarities and differences among three sites of the sauropod dinosaur footprints at Zhucheng area, and do these footprints of the track makers all belong to the same kind of sauropod dinosaurs?The area ratios of manus/pes prints foot based on a large number of data statistics indicated at least two different sauropods lived in Huanglonggou and Tangdigezhuang.Comparison of sauropods size in different times suggested the trend of evolution, which is the size become more and more smaller. The evolution is the result of changes in the environment.