[Objective] This study aimed to optimize the extraction process of flavonoids from hawthorn fruit. [Method] By single-factor and orthogonal experiments,effects of different technological conditions on extraction efficiency of flavonoids from hawthorn fruit were analyzed to investigate the optimal extraction process and relevant parameters. [Result]Percolation extraction was the most appropriate method for extracting flavonoids from hawthorn fruit. The optimal technological conditions were: 50% ethanol as the solvent,solid-liquid ratio 1∶ 8( g / ml),soaking time 72 h,moderate flow rate( 3 ml / min). [Conclusion]The extraction process is simple,low-cost,high-efficiency without the need for heating or harmful residues,which is suitable for mass extraction and production of hawthorn flavonoids. [Objective] This study aimed to optimize the extraction process of flavonoids from hawthorn fruit. [Single-factor and orthogonal experiments, effects of different technological conditions on the extraction efficiency of flavonoids from hawthorn fruit were analyzed to investigate the optimal extraction process and The optimal technological conditions were: 50% ethanol as the solvent, solid-liquid ratio 1: 8 (g / ml), soaking time 72 h , moderate flow rate (3 ml / min). [Conclusion] The extraction process is simple, low-cost, high-efficiency without the need for heating or harmful residues, which is suitable for mass extraction and production of hawthorn flavonoids.