Acarbose is a human small intestinal invertase inhibitor, which is used in the treatment of diabetes. It is highly targeted and has few side effects. It is a very marketable drug. However, purification is more difficult. The macroporous adsorption resin extracts and purifies acarbose, which has strong adsorption capacity, easy desorption, high yield and low cost. This method has become a common method in the world. Its professional extraction of acarbose adsorption resin has the advantages of good selectivity, large adsorption capacity, high mechanical strength, convenient regeneration, fast adsorption, easy desorption, etc., and is widely praised by domestic and foreign customers.