Open type folding suspended ceiling construction method

The invention relates to an open type folding suspended ceiling construction method, and relates to the technical field of support structures. The open type folding suspended ceiling construction method comprises the following steps of S1, surveying and setting out are carried out, specifically, according to a floor horizontal control line and a plane layout drawing, a keel position line and a suspended ceiling finishing surface lowest uniform elevation horizontal line of a special-shaped suspended ceiling panel are popped onto peripheral wall surfaces or column surfaces, and according to thegrid size of the suspended ceiling panel, a theodolite or a total station is used for guiding and measuring a plate seam control line to a suspended ceiling working face; S2, a keel plate is installed, specifically, the keel plate is fixed to the inner top wall of the wall through embedded bolts, a connecting plate is fixed to the lower side of the keel plate, and a hanging plate is fixed to the lower side of the connecti