Objective To determine and compare the contents of total flavonoids from the root and acrial part of four genus Caragana Fabr in Xinjiang.Methods Total flavonoids of samples extracted by 70%ethanol were determined with colorimetry.Results For different genus C.Fabr,the contents of total fla-vonoids were different in various parts of the samples.The roots of total flavonoids contents:C. turfanensis (Krassn.)Kom>C.stenophylla >C.pruinosa Kom>C.acanthophylla Kom.The acrial part of flavonoids contents:C.acanthophylla Kom>C.stenophylla >C.turfanensis (Krassn.)Kom>C.pruinosa Kom.For the same genus C.Fabr,the flavonoids contents of root and aboveground part were different.Conclusion The determination of total flavonoids content in different parts of C.Fabr may prove to be useful for the development,protection and further study.