In　this　paper,　a　symmetrically　coated　damping　structure　for　entangled　metallic　wire　materials　(EMWM)　of　pipelines　was　designed　to　reduce　the　vibration　of　high　temperature　(300°C)　pipeline.　A　series　of　energy　dissipation　tests　were　carried　out　on　the　symmetrically　coated　damping　structure　at　20-300°C.　Based　on　the　energy　dissipation　test　results,　the　hysteresis　loop　was　drawn.　The　effects　of　temperature,　vibration　amplitude,　frequency,　and　density　of　EMWM　on　the　energy　dissipation　characteristics　of　coated　damping　structures　were　investigated.　A　nonlinear　energy　dissipation　model　of　the　symmetrically　coated　damping　structure　with　temperature　parameters　was　established　through　the　accurate　decomposition　of　the　hysteresis　loop.　The　parameters　of　the　nonlinear　model　were　identified　by　the　least　square　method.　The　energy　dissipation　test　results　show　that　the　symmetrically　coated　damping　structure　for　EMWM　of　pipelines　had　excellent　and　stable　damping　properties,　and　the　established　model　could　well　describe　the　changing　law　of　the　restoring　force　and　displacement　of　the　symmetrically　coated　damping　structure　with　amplitude,　frequency,　density,　and　ambient　temperature.　It　is　possible　to　reduce　the　vibration　of　pipelines　in　a　wider　temperature　range　by　replacing　different　metal　wires.　©　2020　by　the　authors.