To reveal the characteristics and high-yield stability of the new wheat variety 'Jirumai 20', and to provide theoretical guidance for its promotion and cultivation management, variance analysis, high stability coefficient (HSC), and variety deviation degree were employed to analyze the data on yield, and the yield components, stability and adaptability of it from 2021-2023 regional trials in the North Huang-Huai Region irrigated land. The results showed that the yield of ' Jirumai 20 ' was significantly positively correlated with the number of grains per spike and 1000-grain weight (the correlation coefficients were 0.470 and 0.372, respectively, both reaching extremely significant levels). The HSC values of this variety in the two-year regional trials were 85.62% and 87.38%, The varietal superiority distance values were 2750.3 and 1080.4, showing an average reduction of 52.11% compared to the control. These results demonstrate that 'Jirumai 20' exhibits excellent yield stability, low superiority distance, and high potential for high, stable, and abundant yields, making it suitable for large-scale cultivation in irrigated land of the National Huang-Huai Winter Wheat Region.