A　sequential　extraction　procedure　followed　by　HPLC-ICP-MS　analysis　was　developed　for　the　speciation　and　quantization　of　arsenic　species　in　dry　seafood　products　(DSPs).　The　extraction　process　involved　three　major　steps,　which　produced　respectively　three　As　fractions:　non-polar　(As-nonpolar),　polar　(As-polar)　and　inorganic　arsenic　species　(As-inorganic).　The　extraction　efficiency　(EE%)　is　in　the　range　of　87-115%.　As-nonpolar　is　0.6-10.2%　of　total　arsenic　in　DSPs,　which　is　served　as　the　index　of　level　of　arsenolipid.　For　Aspolar　and　As-inorgnic,　a　hyphenated　HPLC-ICP-MS　technique　was　established　for　the　separation　and　quantification　of　six　arsenic　species　including　arsenobetaine　(AsB),　arsenocholine　(AsC),　arsenite　(AsIII),　arsenate　(AsV),　monomethylarsonic　acid　(MMA)　and　dimethylarsinic　acid　(DMA).　The　results　indicate　that　AsB　and　AsV　are　the　two　dominate　species　in　DSPs,　while　all　other　species　are　present　in　relatively　low　concentrations.　The　recovery　efficiency　of　77-02.8%　could　be　obtained　with　spike　recovery　test　in　this　two-steps　extraction.　(c)　2008　Elsevier　Ltd.　All　rights　reserved.