The double-layer artificial dermis is designed with a double-layer structure. The lower layer serves as a porous dermal substitute layer, which facilitates the migration of fibroblasts and promotes angiogenesis, thereby forming a new tissue similar to the dermis. The upper layer acts as a semi-permeable temporary epidermal layer, maintaining a moist environment during the initial stage of repair, blocking external contaminants, and reducing water loss. This product is suitable for repairing dermal layer defects in clinical settings such as third-degree burns, deep trauma wounds, post-tumor resection wounds, and flap donor areas.