The utility model relates to the field of ceiling construction, in particular to a molded metal strip plate ceiling-connecting system which solves the problems that the existing ceiling keel is heavy, and has low manufacturing precision, complex connection and low mounting speed and the like. The molded metal strip plate ceiling-connecting system comprises a main keel which is provided with a first positioning hole, and a hanging rod is arranged in the first positioning hole in a penetrating manner; the upper end of the hanging rod is fixed with the main keel, the lower end thereof is connected with a U-shaped keel, and the top surface thereof is provided with a second positioning hole; and side wings are connected at the bottom ends of two side surfaces of the U-shaped keel, and provided with mounting holes, the mounting holes are internally and respectively provided with elastic windproof clamping blocks which are distributed symmetrically along the center line, parallel to a metal strip plate clamping block of the U-shaped keel, and vertical to the U-shaped keel, one end of the metal strip plate clamping block is connected with the side wings, and wholly pressed below the side wings, and one end of the elastic windproof clamping block is connected with the side wings. The molded metal strip plate ceiling-connecting system can realize the stable and convenient connection with the steel structure system, and has the advantages of convenient and rapid mounting, high mounting quality, simple operation, high working efficiency and quick construction speed.