Magnolia base, also known as sylvestre, myramine, and magnolia, is naturally found in the roots of the Ranunculaceae plant. It has anti-inflammatory, antihypertensive, anti-fertility and other effects, and its iodide has anti-microbial and cytotoxic effects. The macroporous adsorption resin is used as an adsorbent to adsorb the magnolia base 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 magnolia.