Objective: To compare Succinic Acid of Rhizoma Pinelliae in viarious areas in China.Method: Using the technology of TCL.Result:Succinic Acid in various areas in China are not very close to one another.The highest amount is in Shanxi Province(about 0.0254% )and the lowest amount is in Hunan Province(about 0.0038% ).Conclusion:There are obvious differences of Succinic Acid among various areas in China.Succinic Acid shoule be between 0.0038%~0.0254%