The properties were studied by comparing experiments with microencapsulation and non-microencapsulation chestnut shell pigment. The absorption wavelength, thermo-stability, acid resistance and stability of the curcumin against vitamine C and sodium nitrate sorbate were studied. The results showed that the stability of microencapsulation chestnut shell pigment against light, heat, acid, vitamine C and other food addiitive sorbate was improved.