Abstract:The purified anthocyanins（ACN）extracted from the skin residue of Vitis amurensis Rupr.and the soybean insoluble dietary fiber（SIDF）extracted from the bean dregs were taken as raw materials.The ACN-SIDF stable system was constructed with absorbance and sedimentation eccentricity as evaluation indicators.The thermal and light stabilities of the stable system were evaluated by the retention rate of ACN.The results showed that the optimum conditions of the stable system were determined as follows：ACN-SIDF mass ratio of 1 ∶30，the SIDF particle size of 300 mesh，the emulsification temperature of 30℃，and the emulsification time of 50 min.After heat treatment in a water bath at 100 ℃ for 100 min and sunlight treatment at（20±2）℃ for 30 d，the retention rates of ACN were 72.66% and 71.45%，respectively.The experimental results showed that the thermal and light stabilities of ACN in the optimized ACN-SIDF stable system significantly improved.