Bitter flavonoids have many health effects, can be used to regulate arrhythmia, dilate blood vessels, lower blood sugar, lower blood fat, can scavenge free radicals, thereby preventing cancer, anti-aging, preventing weakening of cardiovascular and degenerative diseases, and increasing the body's Non-specific immune function, treatment of osteoporosis and so on. The macroporous adsorbentresin provided by Suzhou Bojie Resin Technology Co., Ltd. can effectively extract tartary buckwheat flavonoids with large adsorption capacity, fast adsorption rate, high adsorption rate of bioflavonoids, simple desorption and regeneration, strong anti-pollution ability, very durable, low dissolution rate, long service life, economical and practical, good market feedback.