Abstract: The aim of this study is to breed a new high-quality, high-yield and oilseed rape variety with strong resistance and good adaptation to the natural environment of Hongta District even the whole Yunnan Province. ‘Zhongshuang No.9’imported from Oil Crops Research Institute, CAAS and local variety‘A35’were used as materials to conduct cross. Through selective culture of multiple generations, we obtained the high-quality and high- yield variety. The results showed that in 2013- 2014, average yield of the new variety in the eight experimental plots was 2924.25 kg/hm2, which ranked the first. Comparing with the control group‘Huayou No.5’, the new variety showed yield increase in 6 plots and yield decrease in 2 plots. In general, yield of the new variety increased by 12.65% compared with that of the control. In addition, there was significant difference between the new variety and other varieties. Contents of glucosinolate and crude fat in the new variety were 19.75 μmol/g and 45.26% respectively, and no erucic acid was detected, indicating that this new variety could meet the national standard. Finally this new variety was named as‘Yuhongyou No.4’by Yunnan Seed Management Station on March 25, 2009.