The invention relates to an adjustable aluminum plate ceiling connecting structure. The adjustable aluminum plate ceiling connecting structure comprises aluminum plates, an aluminum plate keel, suspension parts and lead screws. The suspension parts are connected with the lead screws, the aluminum plate keel is installed on the suspension parts, and the aluminum plates are connected with the aluminum plate keel. The adjustable aluminum plate ceiling connecting structure further comprises flexible adjustment parts. The flexible adjustment parts are arranged between the aluminum plates and located on the upper surfaces of the aluminum plates, each flexible adjustment part is provided with a plurality of clamping grooves, one end of each aluminum plate is provided with a plurality of buckles, and the buckles can be clamped into the clamping grooves. The adjustable aluminum plate ceiling connecting structure is convenient to install and adjust and easy to use; meanwhile, the aluminum plates with reserved seams can be properly adjusted, the effect of visual attractiveness is achieved, and the functions of preventing vibration and reducing noise can be achieved; besides, customized machining can be performed according to the size of the seams reserved in the aluminum plates, and mass production can be achieved.