The utility model discloses a pole structure is held up in grafting for lacking magnificent black nightshade, including soil, maternal plant, few magnificent black nightshade, solid fixed ring, support, first connector, connecting strip, first connecting hole, second connector, bracing piece, skewed tooth, third connector and second connecting hole. The beneficial effects of the utility model arethat: through connecting strip and first connector mutually support can be quick the fixed ring that will consolidate tighten up, and then improve work efficiency, can install different bracing piecesaccording to actual conditions through bracing piece and the cooperation of first connecting hole, and then the time this grafting hold up the pole structure can be applicable to the not few magnificent black nightshade grafting of co -altitude, and then increased this structure range of application, it can be fixed with the solid fixed ring who is in suitable position to match through skewed tooth and second connecting hole, prevents that solid fixed ring from coming off to result in the grafting to be failed. The device has simple structure, and it is convenient to grasp, convenient to carry, and application range is wide, and the practicality is strong, can effectively improve characteristics such as work efficiency.