The great jar estimated in Proto-Three Kingdoms period was found at the site from Pyeongtaek Daechuri and the bonding traces from pieces destroyed when they were excavated are observed. Therefore this study would figure out the components of bonding material used in great jars by optical microscope, FT-IR, py-GC/MS and the kind of textile attaching to great jar by transmitted light microscope. As a result of optical microscope for the cross-section, black material is uniformly applied between a piece of jar and the part of bonding and the textile line are observed. Black bonding material is resulted in korean rhus lacquer by FT-IR and py-GC/MS and the kind of textile is identified as hemp by transmitted light microscope. Materials for repairing archaeological objects are hardly known causing little information, but this study proves that the bonding material had used lacquer for great jars before Proto-Three Kingdoms period. Therefore if ancient bonding materials are systematically analysed in the further studies, it would be significant help for studying bonding and restoration materials of ancient objects.