Objective: To compare quality differences of Cassiae Semen from different sources.Methods: The TLC method was used to identify Cassias Semen from different sources.HPLC characteristic spectrum method was used to compare the differences of components contained.Results: The thin layer chromatography spots of Cassias Semen from different sources could be a one-to-one correspondence.The signal of HPLC characteristic spectrum components was basically consistent.Conclusion: The types of components contained in Cassiae Semen from different sources are basically c...