Ralstonia　solanacearum　is　one　of　the　most　important　plant　pathogens　as　it　causes　great　economic　losses　worldwide.　In　this　work,　high　performance　liquid　chromatography　coupled　to　a　multi-angle　laser　light　scattering　detector　(HPLC7　MALLS)　was　applied　to　investigate　the　adsorption　characteristics　of　wild　type　strain　79#　and　avirulent　mutant　RS52＇　of　R.　solanacearum　onto　strong　anion　exchange　resins　(SuperQ-650C).　The　results　showed　that　the　two　strains　differed　greatly　in　their　chromatographic　traces　and　adsorbility.　In　order　to　further　confirm　these　results,　batch　adsorption　experiments　were　carried　out　to　determine　the　adsorption　speed　and　amount.　The　adsorption　amount　of　strain　79#　reached　equilibrium　at　60　min　and　the　maximum　value　was　1.09×10　9　cfu/g(dry　resin),　whereas　the　adsorption　amount　of　strain　RS52＇　reached　equilibrium　at　120　min　and　the　maximum　value　was　2.10×10　9　cfu/g(dry　resin).　Furthermore,　Langmuir　and　Freundlich　adsorption　isotherm　models　were　employed　to　study　the　interactive　behaviors　between　bacteria　and　resins.　The　results　indicated　that　the　adsorbility　of　strain　RS52＇　was　stronger　than　that　of　strain　79#,　which　was　in　good　agreement　with　the　results　of　the　batch　adsorption　experiments.　Additionally,　the　experimental　data　of　R.　solanacearum　adsorption　onto　SuperQ-650C　resins,　especially　for　the　wild　type　strain　79#,　showed　a　better　fit　with　Freundlich　isotherm　model　than　with　Langmuir　model.