The database (DB) on organic composites and organic materials for cryogenic use has been established and the usage of the DB is described. There are two characteristics of the DB, that is (i) only the measured data are accumulated, and (ii) the name of the suppliers and the trade names are considered as one of the specifications of the material. The problems originated from the different measuring methods which exist potentially in DB can be avoided. The user of the DB can obtain easily the materials accumulated in the DB because the trade names or the suppliers names are described. The DB will be supplied in the form of floppy disk in which data are accumulated using the commercially available software. The data which do not exist in the DB can be obtained using the measuring systems installed in the laboratory.