Although　the　chitosan-WTRs　particulate　adsorbent　prepared　by　embedding　method　has　been　proved　to　have　arsenic　adsorption　capacity,　the　capacity　of　it　is　greatly　weakened　compared　with　the　original　water　treatment　residuals　(WTRs).　In　this　study,　WTRs　and　chitosan　were　used　as　raw　materials　to　prepare　a　new　kind　of　adsorbent　beads　by　a　homogeneous　method.　At　the　same　time,　in　order　to　enhance　the　adsorption　capacity　and　reduce　the　limitation　of　kinetics,　freeze-drying　method　was　chosen　to　dry　the　adsorbent.　The　WTRs-chitosan　beads　by　homogeneous　method　(WCB)　were　characterized　by　SEM,　XRD,　XPS　and　other　methods.　According　to　the　characterization　results,　there　are　regularly　arranged　pores　inside　the　particles,　and　the　iron　in　the　particles　mainly　exists　in　the　form　of　amorphous　iron　oxyhydroxide.　According　to　the　results　of　batch　experiment,　the　pseudo-second-order　kinetic　model　has　a　higher　degree　of　fit,　indicating　that　the　WCB　adsorbs　As(V)　mainly　by　chemical　adsorption.　The　maximum　adsorption　capacity　estimated　from　the　Langmuir　isotherm　model　is　42.083　mg/g,　which　is　almost　same　as　the　WTRs.　Weak　acid　and　neutral　conditions　are　conducive　to　adsorption,　while　alkaline　conditions　have　a　significant　inhibitory　effect　on　arsenic　adsorption.