A　capillary　zone　electrophoresis-ultraviolet　detection　(CZE-UV)　method　for　the　analysis　of　five　arsenic　compounds,　As(III)　dimethylarsinic　acid　(DMA),　p-aminophenyl　arsenic　acid　(p-As)　monomethylarsonic　acid(MMA)　and　As(V),　in　sea　foods　was　described.　The　optimum　conditions　of　CE　determination　including　detection　wavelength,　chemical　component　of　buffer　solution,　pH,　buffer　concentration,　separation　voltage　and　injection　time　were　studied　in　detail.　The　results　showed　that　five　species　of　arsenic　were　base　line　separated　within　11　min　under　optimum　conditions.　The　relative　standard　deviations　of　migration　times　and　peak　areas　were　0.　5%　-　1.　5%　and　1.　7%　-　3.　4%,　respectively,　and　the　detection　limits　were　0.　004　-　0.　30　mg/L　The　method　was　successfully　used　to　determine　different　species　of　arsenic　in　dried　shrimps　with　recoveries　of　93%　-　106%