The utility model discloses a girdling layering scissor device and belongs to a hand tool for seedling cultivation. The girdling layering scissor device comprises a scissor-shaped device body. The front end of the device body is provided with a scissor mouth, and the rear end of the scissor mouth is provided with a plier-type opening. According to the girdling layering scissor device, the scissor structure and the plier structure are simultaneously arranged at the front end of a handle of the girdling layering scissor device, a user can enable the scissor mouth to clamp a branch firstly in the using process, rotate the layering scissor device to form a circular cut in the branch, rotate the layering scissor device to form the other circle of circular cut in the branch again, use the plier-type opening to clamp the position between the two circles of cuts and then rotate, and the epidermis of the branch can be smoothly removed. The girdling layering scissor device is fast and convenient to operate, and the branch can be barked through one tool; meanwhile, the girdling layering scissor device is simple in structure, capable of being applied to girdling of varieties of woody plants for mound layering and wide in application range.