Oil sunflower hybrid ’Baikuiza No.13’was developed by crossing the CMS line "00801A" and restorer line "RF008R".The average yield in provincial regional test was 2623.50 kg/hm²,which was 5.21% more than the control ’Baikuiza No.6’.The average yield in production test was 2288.63 kg/hm², which was 11.06% more than the control ’Baikuiza No.6’.The variety has the features of high quality,high oil,resistance to main diseases and good adaptability.