Abstract: Paleontological fossils attest to the earth history, and are significant scientific basis for the life origin and evolution research. The National Fossil Reserve in Jianchang of Liaoning Province has been the world’s most important Yanliao and Jehol Biota fossil site, with abundant fossil species and quantities, which has been the hatspots study area for paleontologists around the world. According to the research achieve ments in recent years, the authors in this paper summarized and introduced the geographical distribution, strata bearing and fossil species of the Mesozoic fossil in Jianchang area. Besides, the fossil reserves were zoned with conservation into 3 protected areas in Jianchang fossil reserve, including 5 core areas, 6 buffer areas and 3 pilot areas. This research would provide scientific reference and basic geological data for research and protection of the National Fossil Reserve in Jianchang area in the future.