Abstract: his paper presents document system of CBERS and points out it's feature, including three system-level managem ent documents,four system-level technical documents, two document trees-a tree of statement of work(SOW) and a tree of specification, eleven Interface Data Sheets (IDS) and some other documents with description of their main contents and usage. These documents may be used as a reference for satellite projects in international cooperation.Domestic satellite projects may take their advantages in order to improve management and increase development efficiency.