Scientific and technical report is an important document type with high intelligence value. But the resource distribution of different carrier forms of scientific and technical report is not integrated and the resource description is not deeply and specific enough to the report document type, which influences the information searching accuracy and efficiency for users. Functional Requirements for Bibliographic Records (FRBR), an emerging model in the bibliographic domain, provides interesting possibilities in terms of cataloguing, representation and semantic enrichment of bibliographic data. This study employs the FRBR conceptual model and entity-relationship analysis method to design in-depth descriptive metadata schema of scientific and technical report by analyzing the entities and mapping the bibliographic attributes corresponding to the characteristics of report, which can help to integrating and disclosing scientific and technical report resources.