Abstract: The fruits of Berberis heteropoda Schrenk were used as raw material to extract the red pigment.The experiment studied the effects of light,heat,reductant,oxide,preservative,sucrose and metal ions on the stability of the pigment.The results showed that the pigment of Berberis heteropoda Schrenk is a type of anchocyanin.It can be applied according to the condition of pH＜7.It is strong in light endurance to some extent,good also in enduring heat and low consistence H2O2（＜0.1%）.But it is poor in corrosion resistance against Na2SO3 and sodium benzoate.It is also found that sucrose and most of metal ions do not exert negative effects on the stability of the pigment,except Fe3+,Fe2+and high consistence Pb2+(＞50.0×10-3mol/L),which show effect to some extent.

Key words: Berberis heteropoda Schrenk, pigment, anthocyanin, stability