Method for plowland rearing of Potosia brevitarsis larvae and application of larvae and feculae

The invention relates to a method for plowland rearing of Potosia brevitarsis larvae. The method comprises the following steps: 1) producing foodstuff for the Potosia brevitarsis larvae; 2) building arearing pond; 3) carrying out foodstuff laying, wherein the foodstuff thickness is about 15cm to 20cm; 4) stocking the Potosia brevitarsis larvae in the foodstuff laid rearing pond; 5) capping the rearing pond; and 6) feeding the larvae till harvesting, feeding the Potosia brevitarsis larvae for 60 to 70 days to enter a harvesting stage, separating the larvae from the feculae, and separately treating the larvae and the feculae. According to the method, the culture of the Potosia brevitarsis larvae rises to mass production from an experimental stage, and industrialized culture is achieved. A large number of Potosia brevitarsis larva products are obtained, and a novel field is opened for application of insect proteins. The feculae of the Potosia brevitarsis larvae are obtained and serve asa good environment-friendl