Adsorption　of　methylene　blue　(MB)　and　methyl　violet　(MV)　onto　camellia　seed　powder　(CSP)　was　conducted,　and　the　equilibrium　data　were　fitted　with　Langmuir,　Freundlich　and　Dubinin-Radushkevich　(D-R)　models　to　describe　the　equilibrium　isotherms.　The　kinetics　rates　were　modeled　using　pseudo-first-order,　pseudo-second-order　kinetic　equations,　and　intra-particle　diffusion　model.　The　results　revealed　that　adsorption　of　MB　and　MV　onto　CSP　was　affected　slightly　by　the　pH　value,　and　the　maximum　adsorption　amount　was　achieved　at　the　pH　of　5.5,　the　unadjusted　value.　For　MB,　the　adsorption　process　could　be　depicted　primly　by　Langmuir　function,　while　for　MV,　the　equilibrium　data　agree　well　with　all　of　the　Langmuir,　Freundlich,　and　D-R　models.　The　Gibbs　free　energy　(Delta　G(0)),　enthalpy　change　(Delta　H-0),　and　entropy　change　(Delta　S-0)　for　MB　were　all　below　zero,　which　indicated　the　adsorption　was　spontaneous　and　exothermic　process;　while　for　MV,　the　negative　Delta　G(0)　value　and　positive　Delta　H-0　value　imply　that　its　adsorption　process　is　spontaneous　and　endothermic.　For　both　MB　and　MV,　the　kinetics　data　were　better　fitted　with　the　pseudo-second-order　kinetic　model　and　the　intra-particle　diffusion　controls　the　adsorption　rate.