[Objectives]  To determine the sublethal effects of chlorantraniliprole on the F₀ and F₁ generation of Spodoptera frugiperda and thereby provide a theoretical basis for the rational use of chlorantraniliprole to control this pest. [Methods]  The feed mixing method was used to determine the toxicity of chlorantraniliprole to S. frugiperda, and its sublethal effects on the development and reproduction of the F₀ and F₁ generations were studied using life tables. [Results]  Treatment with a sublethal concentration (LC₂₅) of chlorantraniliprole significantly reduced (P < 0.05) the fecundity and increased the longevity (P < 0.001) of F₀ females compared to the acetone-control. The duration of the 4th and 5th larval instars and adult longevity of the F₁ generation were significantly longer (P < 0.001), as were the pre-oviposition period (APOP) and total pre-oviposition period (TPOP) (P < 0.05). The oviposition period was significantly shorter than that of the control (P < 0.05). The oviposition period, fecundity (P < 0.001) and hatch rate (P < 0.05) of F₁ females were significantly less than in the control group, and, in addition, the net reproductive rate (R₀) of the F₁ generation was significantly lower (P < 0.05) and the average generation cycle  (T) significantly longer (P < 0.05). [Conclusion]  The results suggest that sublethal concentrations of chlorantraniliprole can inhibit the population growth of S. frugiperda, which could contribute developing a comprehensive control strategy for this pest.