Hermetia illucens screening device and screening method thereof

The hermetia illucens screening device comprises a swinging screen, a motor driving part is arranged at the bottom of the swinging screen, multiple layers of screen meshes are arranged on the swinging screen, discharging openings corresponding to the screen meshes are formed in the outer side of the swinging screen, and the mesh number of the screen meshes is gradually increased from top to bottom; and a drying mechanism is arranged in the swinging screen and can be used for drying materials on the screen. In order to solve the problems that when hermetia illucens is screened, due to the fact that feeding materials in the earlier stage are unreasonably distributed, excessive materials are left during larva screening, the humidity and viscosity are large due to the fact that the left materials are combined with fecula, and meshes of a screen are prone to being blocked, a drying mechanism is arranged, and the drying mechanism is used for drying the hermetia illucens; and the drying mechanism is used for drying