Abstract: Taking Juglans sigillata peel of Yunnan as test materials, the pigment was extracted by microwave assisted method, the extraction process were optimized by single factor and orthogonal experiments, and its stability and antioxidation were investigated, in order to provide a certain reference for the development and utilization of the pigment fromJuglans sigillata peel of Yunnan.The results showed that the optimal microwave assisted extraction conditions of pigment were obtained as follows,microwave power 480 W,extract temperature 80 ℃,microwave time 10 seconds,solid-liquid ratio 1∶70 g·mL^-1,ethanol concentration 60%,extract time 60 minutes.The pigment was unstable in hot and light,sensitive to pH,more stable to common food additives,it was stable to Ga²⁺,Na+,Mg²⁺,Sn²⁺,but unstable to Fe³⁺,Cu²⁺.The optimal has remarkable scavenging activity to ABTS+·,DPPH·,·OH,which became larger with the increase of its concentration.