Abstract: After the cold chilling in 2012, in order to compare the cold resistance of Elaeis guineensis Jacg new varieties including RYL31-40, Elaeis guineensis Jacg planting base of Jiangmen in Guangdong Province was investigated in April, 2013, and then chilling injury index of Elaeis guineensis Jacg was determined. Referring to regional the adaptive observing technical specifications of Elaeis guineensis Jacg varieties, the investigated oil palm was graded, and the chilling injury index was calculated according the weight. The results showed that: the chilling injury index of RYL38 and RYL32 were 0.286和0.270, respectively, they were larger than the other varieties. While, the value of RYL40, RYL31和RYL39 were smaller relatively, they were 0.157, 0.177 and 0.183. The results indicated that with chilling injury index as the evaluation of Elaeis guineensis Jacg cold resistance, Elaeis guineensis Jacg could withstand winter, and RYL40, RYL31 and RYL39 showed stronger cold resistance than the other varieties.