Abstract: It is very important to screen cold-resistant rose（Rosa chinensis Jacq.） resources, which is benefit for enhancing the ornamental effect and improving the greening in the cold area. In this study, the cold-resistant investigation of 105 rose cultivars is carried out under natural overwinter conditions. The result indicates that overall survival rate is 64.74%, cold resistance index in different cultivars spans from 0.25 to 1.00, while survival rate varies from 0 to 100%. 15 cultivars has 100% survival rate while 7 cultivars all die. There is a certain relation between survival rate and cold resistance index（R²=0.686 1）. The variance of cold resistance index has a scattering tendency when survival rate increases. Combining with rose growth vigor, ornamental etc. 20 cold-resistant cultivars are screened out, which can be used for greening and ornamental in Liaoyang city.

Key words: rose（Rosa chinensis Jacq.）, resources, cold-resistant, screening