The experiment of seed production of K-you 267, a new combination of hybrid rice with cold tolerance, was conducted in Guiyang at an altitude of 1140 meters, in 2003. The restorer line Qianhui 267, male parent, was sown on March 31 while the cytoplasm male sterile (CMS) line K17 A, female parent, was sown on May 23, May 28 and June 2, separately. The results showed that the male parent Qianyou 267 headed from August 9 to 15. The best heading stage for the female parent, which completely met the heading stage of male parent, was the third sowning date of May 28. The yield of this female sowing date was 217.1kg/667m~2 when the restorer line Qianhui 267 reached the stage about 7.6 leaves. There were totally 18 leaves for the restorer line Qianhui 267 while the number of leaves was 12 for CMS line K17 A in different sowing stages. The feasibility was discussed for the seed production of K-you 267 in the higher elevation areas of Guizhou province.