Pectin,known for its excellent physical properties,is widely utilized across various fields,including food,medicine and cosmetics.Polyphenols,although highly bioactivity,often suffer from poor solubility and low bioavailability.Grafting polyphenols onto pectin enhances the functional value of both pectin and polyphenols.The synthesis method of polyphenols -pectin complex (non-covalently bound and covalently bound ),structural characterization (ultraviolet -visible spectroscopy,Fourier transform infrared spectroscopy,nuclear magnetic resonance hydrogen spectroscopy,scanning electron microscope,X-ray diffraction,differential scanning calorimetry,and thermogravimetric analysis ),biological activity (antioxidant activity,antibacterial activity,and antitumor activity ).Lastly,the diverse applications of polyphenol -pectin complexes in multiple fields and their potential for future development are explored.