A　method　for　simultaneous　determination　of　cimaterol,　clenbuterol　and　salbutamol　in　feeds　was　developed　by　capillary　zone　electrophoresis.　The　effects　of　the　experimental　conditions　on　the　separation　and　determination　of　cimaterol,　clenbuterol　and　salbutamol　have　been　examined.　Under　the　optimum　conditions,　all　three　compounds　were　completely　separated　in　8　min.　The　linear　range　of　cimaterol,　clenbuterol　and　salbutamol　was　0.　1　-　1.0　mg/L,　and　the　detection　limits　(　S/N　=3)　were　0.02,　0.03　and　0.02　mg/L,　respectively.　The　developed　method　has　been　used　for　the　determination　of　spiked　feed　samples.　The　recoveries　of　cimaterol,　clenbuterol　and　salbutamol　were　89%　-103%)　86%　-91%　and　83%　-87%＞　respectively.　The　relative　standard　deviations　for　cimaterol,　clenbuterol　and　salbutamol　were　3.　8%　-4.　3%,　3.　6%　-　5.　0%　and　4.　0%　-　5.　6%,　respectively.　The　proposed　method　is　a　sensitive,　fast　and　simple　method　for　the　determination　of　clenbiterol　clenbuterol　and　salbutamol　in　feeds.