RESUMEN
Medicinal plants have a long history and play an important role in the prevention and treatment of human diseases. However， the interaction between bioactive components and specific biological targets in many medicinal plants is still unclear. Conventional separation and activity evaluation model of chemical constituents from natural products was time-consuming and laborious， and cannot truly reflect the interaction between the natural conformation of compounds and receptors， so these methods could not meet the urgent needs of modern drug development. Affinity ultrafiltration coupled with liquid chromatography-mass spectrometry （AUF-LC/MS） is a rapid， efficient and precise method focused on identification of bio-components from natural products， it can make up for many shortcomings found in conventional discovery of bio-constituents. However， AUF-LC/MS technology also has some drawbacks in experiments. In this paper， the principle， characteristics and application of AUF-LC/MS in the screening of active ingredients from medicinal plants are systematically reviewed， and its development prospect is prospected， so as to provide scientific basis for rapid and targeted screening of active components from medicinal plants.