Abstract:Objective:In order to exploit the medicinal resources and provide a scientific evidence for the clinical use and quality of Cynomorium songaricum control, the chemical constituents and pharmacological effects of the stem of the plant were studied preliminarily.Method:The chemical constituents were studied by spectral analysis and chemical method.The pharmacological effects were studied by an experiment on the defecation and deficiency of kidney function.Result and Conclusion:Seven compounds were isolated from the stem of C.songaricum and identified as β sitosterol(I), palmitic acid (Ⅱ), ursloic acid (Ⅲ),daucosterol (Ⅳ),(-) catechin (Ⅵ),naringenin 4′ O pyranogluoside (Ⅶ) and succinicacid (Ⅻ). Compounds Ⅵ and Ⅻ were isolated from this species for the first time. The pharmacological results show that the different extracts facilitate catharsis and replenish the deficiency of kidndey yang.