Abstract: Based on the results of peanut variety screening test from 2018 to 2019, the variation coefficient, correlation coefficient and regression coefficient of main agronomic characters and yield of Dupihong and the control variety Zhonghua 16 were analyzed to compare their stability and adaptability, and the quality of Dupihong was analyzed to promote the popularization and application of this variety in production. The results showed that the high and stable yield of Dupihong were lower than that of the control variety, which may be related to its small grain peanut; The yield regression coefficient of Dupihong was smaller than that of the control variety, and the regression intercept was larger than that of the control variety, which showed that Dupihong had special adaptability and was more suitable for planting at low fertility level.Increasing the total number of fruits, productivity per plant, 100-fruit weight, 100-kernel weight and full-fruit weight rate could effectively increase the yield of Dupihong. Its main stem and side branches were longer, and the number of branches and fruiting branches were more, which had a certain inhibitory effect on its yield; The contents of sucrose, palmitic acid, behenic acid, stearic acid and arachidic acid in cortex ulmi red were lower than those in common peanuts; The protein content of Dupihong was 26.44%, which accorded with the standard of the protein content of edible peanut kernel （>26.0%）. From the comprehensive quality, Dupihong is more suitable for food processing and leisure peanuts.

Key words: Dupihong, adaptability, stability, relevance, quality