The monitoring of fossil weathering has always been a core problem in the monitoring and protection of fossil producing areas. Spectral technology provides a feasible way for monitoring fossil weathering. In this paper, ASD fieldSpec 4 portable spectroradiometer was used to study dinosaur bone fossils in Zhucheng, Shandong Province, which has been an important site for dinosaur excavation since the 1960. The results show that the fossils with different colors and weathering degrees have different spectral characteristics and obvious identification marks. The changing characteristics of their spectral curves are of great reference significance for the monitoring of fossil weathering in the future.