【目的】 筛选七星瓢虫Coccinella septempunctata L.成虫人工饲料的最优配比。【方法】 采用正交试验法比较添加虾、花粉、猪油和蜂蜜的人工饲料对七星瓢虫成虫的体重、产卵前期、存活率、产卵量和孵化率的影响，筛选并优化人工饲料配方。【结果】 添加饲料含量22.53%的虾仁能增加成虫体重增长、提高存活率和产卵量，3.76%的油菜花粉能缩短成虫产卵前期、提高存活率和增加产卵量，4.69%猪油能提高成虫存活率、产卵量和孵化率，6.89%的蜂蜜能促进成虫产卵量增加和提高孵化率。优化饲料饲养七星瓢虫与基础饲料饲养相比存活率和孵化率均提高，产卵前期缩短，差异性不显著（P>0.05），雌成虫体重增长和产卵量均显著提高（P<0.05），分别是基础饲料饲养的128.15%和122.15%。优化饲料饲养七星瓢虫与蚜虫饲养相比雌成虫体重增长，产卵前期缩短，差异性不显著（P>0.05）；存活率、产卵量和孵化率降低，分别是蚜虫饲养的94.44%、63.97%和88.30%。【结论】 通过正交试验优化的人工饲料适合七星瓢虫成虫饲养，与基础饲料相比增加了体重，缩短了产卵前期，提高了存活率、产卵量和孵化率；与蚜虫饲养相比降低了存活率、产卵量和孵化率，该优化饲料还需要进一步的改良。

[Objectives]  To improve the optimal content ratio of artificial dietfor adults of Coccinella septempunctata. [Methods]  An artificial diet for adult was optimized by using an orthogonal design. Shrimp, pollen, lard, and honey were selected as the key factors, and their effects on adult weight gain, preoviposition, survival, egg production and incubation were assessed. [Results]  The results showed that an increased shrimp content of 22.53% in the diet could increase weight gain, survival and egg production. Increased pollen content of 3.76% improved both survival and egg production, and shortened preoviposition. A lard content of 4.69% increased survival, and egg production and hatchability. A honey content of 6.89% could promote egg production and hatching rate of adult. The survival rate and hatchability of C. septempunctata fed the optimized diet were higher than that fed the basal diet (P>0.05), and the weight gain and fecundity of female adults were significantly increased (P<0.05), which were 128.15% and 122.15% higher than that fed the basal diet, respectively. The weight gain of female adults fed the optimized diet were higher than that fed the aphids (P>0.05); and the survival rate, fecundity and hatchability of female adults were reduced, which were 94.44%, 63.97% and 88.30% lower than that fed the aphids, respectively. [Conclusion]  Compared with the basic diet, the artificial diet optimized by orthogonal design was suitable for feeding ladybird adults, which increased body weight, shortened preoviposition, and improved survival rate, egg production and hatching rate. Compared with aphid feeding, the survival rate, egg production and hatchability were reduced, the optimized diet needs further improvement.