As an effective tool for advanced researches of polymers, an integrated database system was developed in the field of 13C-NMR spectroscopy. It consists of three kinds of database, that is, bibliographic informations(CNMRP), numerical data(SHIFT) and spectral figures(ELF). is a hierertical database, implemented on the DBMS FAIRS, containing about 1800 records with a memory capacity of 7 MB, based on the references published since 1969 on 13C-NMR of polymers. SHIFT is a relational database, implemented on the DBMS, AIM/RDB, containing chemical shift data and their assignments. described in 14 relations. ELF is an electronic data filing system, serves observe 13C-NMR spectral charts for 46 typical synthetic polymers, by retrieving CNMRP as the lower level file. These three kinds of database, CNMRP, SHIFT and ELF are interlinked by key numbers, and provides integrated useful informations about 13C-NMR of polymers.