Salvianolic acid B is the most active substance in the water-soluble component of Salvia miltiorrhiza Bunge. It has obvious protective effect on cell membrane damage caused by lipid peroxidation, and also has anti-platelet aggregation and thrombus formation. Therefore, the extraction technology of salvianolic acid B has attracted the attention of the medical community.

The separation and purification of salvianolic acid B by macroporous adsorption resin is simple and convenient, the operating conditions are mild, the resin can be regenerated and reused, and the economic benefit is high.