To study the variation of quality traits of offspring of irradiated fragrant rice varieties, the M₂ generation population obtained by ⁶⁰Co-γ ray irradiation treatment of the fragrant rice variety Yanjing 939 was used as the research material, and the fragrant traits, appearance quality traits and starch RVA profile properties were analyzed.The results showed that the Shannon-Wiener diversity index of the fragrant lines of the M₂ generation of Yanjing 939 reached 64.5%, the Shannon-Wiener diversity index of the appearance quality traits and the RVA profile properties of the fragrant lines ranged from 0.773 to 2.045, and the mutation frequency was between 2.80% and 28.04%.The chalky rice rate, rice chalkiness had a good trend, peak viscosity, breakdown value had a tendency to decline.The fragrant lines in the M₂ generation group formed a group different from the original cultivar in the appearance quality traits and starch RVA profile properties. The results of this study provide a reference for the quality mutagenic effects of radiation-induced mutant rice varieties.