Bolted　joints　often　have　a　significant　effect　on　the　dynamical　behavior　of　assembled　mechanical　structures.　An　accurate　model　of　an　assembled　structure　depends　on　correctly　determining　and　identifying　the　dynamic　parameters　of　bolted　joints.　This　paper　presents　an　alternative　method　for　identifying　these　dynamic　parameters　using　structure＇s　natural　frequency　and　damping.　A　novel　experiment　is　designed　with　a　test　piece　consisting　of　only　bolted　joints,　with　the　governing　equations　of　the　test　piece　established　using　the　analytical　method.　The　relationships　between　the　equivalent　dynamic　parameters　of　the　bolted　joints　and　the　natural　frequencies　and　damping　ratios　of　the　test　piece　are　determined　for　both　the　normal　and　tangential　directions.　The　parameter　identification　problem　for　bolted　joints　is　thus　transformed　into　a　test　of　the　natural　frequency　and　the　damping　ratio　of　the　test　piece.　In　order　to　check　the　accuracy　of　the　proposed　identification　method,　the　test　piece　and　bolted　joints　are　modeled　using　the　finite　element　method　(FEM)　and　the　dynamic　properties　of　the　test　piece　are　analyzed.　The　maximum　error　between　the　natural　frequencies　of　the　FEM　result　and　the　experimental　values　in　the　normal　and　tangential　models　are　4.73%　and　0.34%,　respectively.　The　result　indicates　that　the　proposed　method　is　valid　for　the　dynamic　parameter　identification　of　bolted　joints.