Since the 1960s， 297 expeditions carried out by Scientific Ocean Drilling have recovered more than 4×10⁵ meters of cores and collected a large amount of data. However， the data based on core sample testing and direct observation are scattered in different documents and databases in a heterogeneous format， which hinders the extensive sharing and effective use of them. Through systematic investigation of the official reports， databases， and academic papers of the four stages of Scientific Ocean Drilling， we show the present status of these scientific data including their sources， storage media， and specific types. The data of Scientific Ocean Drilling mainly consist of shipboard and post-expedition results. Nearly 200 data types classified into 15 categories including coring summary， lithostratigraphy， sedimentology and mineralogy， paleontology， stratigraphy， geochemistry， structural geology， geophysics， etc. are recorded in tables， figures， and texts. We find that these scientific data are hierarchically organized and have specific spatial-temporal properties； their sources are both straightforward and complex with different storage formats； and data types of different sites are not only consistent but also diverse. The data of Scientific Ocean Drilling are typical scientific big data in the field of earth sciences. Meanwhile， it is believed that the compilation of the Scientific Ocean Drilling Data would be of significance for fast data acquisition and future studies. This step not only has the potential to solve major scientific problems in the field of Earth science such as long-term biological evolution， global material circulation， paleoclimate and paleoceanography， and deep-sea mineral resource evaluation， but may contribute to the transformation of scientific research paradigm as well. Meanwhile， a proposal for data format unification and data compilation is also presented here.