Fly larva breeding device

The present invention relates to a fly larva breeding device. In the fly larva breeding device, a breeding case is divided into a plurality of parts so that larvae are grown for each stage. Thus, portions of completely grown larvae are picked up, and larvae which are not picked up evolve into flies and then escape into a fly habitat disposed in an upper portion of the breeding case. Thus, the flies spawn in the breeding case to repeatedly perform the breeding circulation process, thereby automatically breeding larvae. For this, the fly larva breeding device according to the present invention includes: a fly habitat, a larva breeding case installed in the fly habitat, and a cover rotatably disposed on an upper portion of the larva breeding case.