As(V)　in　aquatic　environment　has　posed　a　great　threat　to　human　beings　due　to　its　high　mobility　and　toxicity.　Developing　economical　and　efficient　adsorbents　is　vital　for　the　removal　of　arsenic　contamination　in　wastewater.　We　herein　report　the　synthesis　of　FeOOH-MnO2/Sepiolite　and　Fe2O3-MnO2/Diatomite　using　the　hydrothermal　treatment　method　at　180　degrees　C　for　12　h　with　KMnO4,　MnCl2,　and　FeCl3　as　metal　source　and　urea　as　precipitating　agent.　The　FeOOH-MnO2　or　Fe2O3-MnO2　composite　was　in　situ　grown　on　the　sepiolite　or　diatomite　support,　resulting　in　a　significant　enhancement　in　surface　area　(which　was　77.4　and　83.0　m2/g　for　the　supported　FeOOHMnO2　and　Fe2O3-MnO2　samples,　respectively).　FeOOH-MnO2/Sepiolite　and　Fe2O3-MnO2/Diatomite　could　effectively　remove　As(V),　with　the　maximal　As(V)　adsorption　capacities　at　25　degrees　C　and　pH　=　7　being　124.3　and　148.2　mg/g,　respectively.　Furthermore,　both　samples　exhibited　good　recycle　As(V)　adsorption　performance.　In　addition.　As(V)　adsorption　mechanisms　of　the　samples　were　also　discussed.　The　As(V)　adsorption　on　FeOOHMnO2/Sepiolite　and　Fe2O3-MnO2/Diatomite　obeyed　the　Freundlich　and　Langmuir　isothermal　adsorption　models,　respectively.　Considering　their　simple　synthesis　processes　and　excellent　adsorption　performance,　we　are　sure　that　FeOOH-MnO2/Sepiolite　and　Fe2O3-MnO2/Diatomite　are　promising　adsorbents　for　arsenic　removal　from　wastewater.