NW strike faults in Huangdao Area were examined and geological models were established using field geological survey data. Based on the similarity principle,we adopted the structural physical simulation experiment to carry out the developmental evolution of the study area from Late Jurassic to Early Eocene,which fit well with the actual geological conditions. The results indicated that the developmental evolution of NW strike faults in Huangdao area experienced three stages：Late Jurassic—Early Cretaceous,Middle-Late of Early cretaceous—Late Cretaceous and Paleocene—Early Eocene. They also indicated that the tectonic stress field evolved a strong-strong-weak evolutionary process. Middle-Late of Early Cretaceous—Late Cretaceous was a period of large-scale NE-SW extension in study area,during which most NW strike faults were formed. Mechanically,the NW strike faults in Huangdao area are closely related to the development of tectonic stress field in eastern China since Late Jurassic. The essential factors leading to the tectonic evolution were the changes of the Pacific Plate subduction and the strike slipping motion along the major boundary fractures.