1 From natural edible pigment extracted purple cabbage,water as amaranthine extraction agents and extraction temperature,time and number and the process into the room temperature,time,for 2 hours,the number 2 times.2 Microwave-assisted conditions,water based solvent extract directly from the purple cabbage red pigment.Experiments show that microwave radiation to the leaching pigment.The best condition for:microwave irradiation time,fire for 100 180 s.3 The single factor analysis to identify the ultrasonic washing assist extraction menstrual Ming jose,the optimum technological conditions for 70 minutes.4 Compare three methods of extraction. 1 From natural edible pigment extracted purple cabbage,water as amaranthine extraction agents and extraction temperature,time and number and the process into the room temperature,time,for 2 hours,the number 2 times.2 Microwave-assisted conditions,water based solvent extract directly from the purple cabbage red pigment.Experiments show that microwave radiation to the leaching pigment.The best condition for:microwave irradiation time,fire for 100 180 s.3 The single factor analysis to identify the ultrasonic washing assist extraction menstrual Ming jose,the optimum technological conditions for 70 minutes.4 Compare three methods of extraction.