Motherwort, scientific name 3,5-dimethoxy-4-hydroxy-benzoic acid (4-indolyl)-1-butyl ester, which is commonly known as its hydrochloride salt. Extracted from the leaves of the family Lamiaceae, the leaves of the motherwort have the functions of promoting blood circulation and removing stagnant water. The macroporous adsorption resin is used as an adsorbent to selectively adsorb the motherwort from the aqueous solution by physical adsorption. The method has the advantages of simple equipment, easy operation and high product purity. Therefore, the macroporous resin adsorption method is increasingly widely used in the purification and purification of motherwort. The macroporous adsorbent resin provided by Suzhou Bojie Resin Technology Co., Ltd can effectively extract the motherwort, which has large adsorption capacity, convenient desorption and high regeneration rate, and is widely used in the extraction of motherwort.