Abstract:The objective of this study was to select anti-browning potato gene and create new anti-browning potato germplasm resources, further to breed new anti-browning potato varieties. We hoped to use breeding technology to solve the browning phenomenon in potato processing.275 breeding varieties were selected as test materials. To select anti-browning varieties, we mensurated the three indexes, browning index, browning degree and ACD. (1)The cluster analysis of browning index showed that the varieties can be divided into 5 types. The first type was higher anti-browning material, browning index 0.00-16.67, 13 materials; the second type was high anti-browning material, browning index 25.00-54.17, 34 materials; the third type was anti-browning material, browning index 62.50-83.33, 50 materials; the fourth type was browning material, browning index 87.50-95.83, 38 materials; the fifth type was the complete browning material, browning index was 100,140 materials. (2)Browning degree was less than 0.25 when browning time was 20 min for 30℃, and after 4℃for 24h the variation value was no more than 0.15,which can be selected as anti-browning resources. A total of 25 materials were selected by browning degree. (3) Most potato resources can be used for fresh food consumption. The maximum value of ACD was 9, and the minimum was 5. There were 4 higher anti-browning materials, Yunshu 501,CIP395109.29, CIP393615.6,Yunshu 401; 4 high anti-browning materials, Nehegaodianfen, CIP397100.9,Ke200950-3, s.goniocalyx; 4 anti-browning materials,Kexin22, CIP393617.1,Andover,Ke9412-13. These 12 selected materials can be used as the basic material for breeding new potato anti-browning varieties.