[Aim] Sunflower white rust (Albugo tragopogonis) and black stem (Phoma macdonaldii) are two new quarantine diseases. We surveyed Xinyuan and Tekes in Yili Region, Xinjiang, to identify the level of resistance against these new diseases in currently planted sunflower cultivars. [Method] Field trail of 16 cultivars of sunflower planted widely in Yili was carried out for surveying the number of diseased leaves at Xinyuan County and Tekes County from May to September, 2015. Disease index and average yield of sample trails were integrated for analysis of resistance to white rust and black stem. [Result] We found differences in resistance: cv. Xinyuan NX19012 (Xiyuzhaoyang), the disease indices were 7.83 and 25.62, cv. KWS204 had values of 21.04 and 39.50; The same cultivar in different places showed consistent levels of resistance: cv. Xinyin S31 in Xinyuan, the sunflower white rust disease index was 9.41, while in Tekes, it was 9.38. Not all cultivars were consistent: cv. G101 had sunflower white rust disease indices of 9.16 in Xinyuan, while 11.78 in Tekes, and the same for sunflower black stem were 31.05 and 37.79, respectively. [Conclusion] Cv. NX19012 (Xiyuzhaoyang) was the most suitable to plant in Yili Region through the comprehensive analysis of disease index, production, and locally meteorological data. Cv. S606, TO12244, NX01025 (Xibuluotuo) may also be considered as alternative cultivars and Xinkuiza No. 5 of Xinkuiza series was possibly a useful cv. for future breeding efforts.