Grafting fixing device

The utility model discloses a grafting fixing device, which comprises a water tank, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, the moisturizing mechanism is communicated to one side of the first pipeline, the grafting position can be limited and protected through the square hole in the water tank, spraying moisturizing can be conducted on the periphery of the grafting position through the water tank, the moisturizing mechanism comprises a micro water pump, and one side of the micro water pump is communicated with the first pipeline. By means of the square hole in the water tank and the pipelines in the square hole, the grafting position can be supported and protected through the water tank, the pipelines and the micro water pumps are arranged at the four corners in the square hole, water can be pumped out through the micro water pumps, and spraying humidification is conducted on the periphery of the clamped grafting position from the four positions; the moisturizing mechanism