The invention discloses a positioning module. The positioning module includes a bottom plate, a top plate, a movable flat plate, a linear driving device and a first sliding assembly, wherein the linear driving device is installed on the bottom plate, the first sliding assembly is installed on the linear driving device, the linear driving device can drive the movable flat plate to move linearly inthe driving direction of the linear driving device, and thereby position adjustment of a product in the driving direction of the linear driving device is realized. The positioning module is advantagedin that position adjustment of the product in the X direction and the Y direction can be realized, not only position adjustment of the product only in the X direction or the Y direction can be realized, but also position adjustment in the two directions of the X direction and the Y direction can be realized, positioning accuracy of the product is guaranteed, positioning accuracy can reach 0.005mm, excellent quality accuracy of the printed product reaches 0.05mm, the product yield is improved, and The positioning module has great economic and practical values.