In order to speed up the upgrading of New Potato Varieties in Liaoning Province,and promoting the healthy development of potato industry in Liaoning Province. The phonological period,agronomic characteristics,stem rot resistance and yield of 10 new potato varieties were investigated in Field. The results show that the comprehensive characters of Liaoshu 6 and Xingjia 2 varieties have a good performance,the yield of Liaoshu 6 and Xingjia 2 varieties have reached 50 747.6 kg/hm~2 and 45 845.1 kg/hm~2 respecti...