Farmland medicinal earthworm ecological breeding device

The utility model discloses a farmland medicinal earthworm ecological breeding device which comprises a breeding box, an upper cover is installed on the top of the breeding box, at least two sets of earthworm breeding box assemblies are installed in the breeding box, each earthworm breeding box assembly comprises a breeding box, a breeding bed and a soil layer, the breeding boxes are transversely installed in the breeding box, and the soil layer is arranged on the breeding bed. The breeding box, the upper cover, the earthworm breeding box assemblies and the fixing assemblies are used in cooperation, the breeding box is used for closed breeding, the situation that earthworms escape in rainy days is avoided, the number of the earthworm breeding box assemblies is at least two, and therefore the earthworm breeding box assemblies are not prone to being damaged. Earthworms can be artificially bred in each layer of earthworm breeding box, the field utilization rate is high, the earthworm breeding box assemblies and