Abstract: This research used Wuhan strain Hermetia illucens L. larvae as replacement of artificial frog feed, and then mensurated growth index and nutritional index of the Pelophyh nigromulotus. The results show that when the replacement ratio are 0, 25%, 50%, 75%, and 100%, respectively, the weight gain rate of P. nigromaculatus are 8.14%, 8.52%, 32.31%, 18.19%, and 18.99%, respectively, the specific growth rate of P. nigromaculatus are 0.22%/（t, 0.23%/d, 0.79%/d, 0.47%/d, and 0.49%/d, respectively. When the replacement ratio is 50%, the fat content, muscle fat and protein content of P. nigromaculatus reach the highest value. The weight gain and feed coefficient of the P. nigromulatu also reach the optimal value compare with the other treatments. Therefore, the use ofHermetia illucens L. larvae as artificial feed to breed P. nigromaculatus has a good effect, and the best replacement ratio is 50%. Our research has laid the foundation for the practical application of black soldier fly and its derivatives in frog breeding.