The invention relates to a light-medicine-combined treatment device for skin ulcers, comprising an outer layer, a luminous layer, a medicine patch layer and a light parameter controller. The outer layer is a basic structure of the whole device, made from a flexible material and arranged at the outermost layer, the medicine patch layer is arranged on the innermost layer and laid with an external aid medicine for treating skin ulcers, and the luminous layer is arranged between the outer layer and the medicine patch layer and comprises optical fiber cloth and a plurality of LED luminous devices which are connected around the optical fiber cloth, are electrically connected with the light parameter controller and control the lamination parameters of the LED luminous devices. The invention realizes a unique treatment method of combining LED illumination and external medicine application, has the advantages of remarkable effect, simple operation and portability, and is suitable for treating skin ulcers.