Mao Dongqing is a kind of plant of the genus Dongqing, which has the function of promoting blood circulation, relieving swelling and relieving pain, clearing away heat and detoxifying. It is a good drug for treating cardiovascular diseases by modern pharmacological experiments and clinical application. The macroporous adsorption resin is used to enrich and separate the total saponins of Maodongqing, which has the characteristics of strong operability, simple equipment, stable quality and good economic benefits.