The invention provides a construction method for an outer wall socket type plate buckle steel pipe scaffold. The construction method is composed of vertical rods, cross rods, inclined pulling rods and the like. The vertical rods are connected with casing pipes in a socket mode. The cross rods and the inclined pulling rods are connected with an inserting plate through wedge-shaped plug pins in the mode that the rod ends and connectors are clamped into the vertical rods, and wall connecting points are arranged to form a geometric invariant structure system. A hanging buckle type profiled steel sheet is laid on the geometric invariant structure system, and the outer side of the hanging buckle type profiled steel sheet is sealed by hanging a safety net so that the safety net can be used for protection and decoration except structural construction. The construction method comprises the specific steps of construction preparation, prefabricated bolt embedding, concrete pouring, I-shaped steel laying, I-shaped steel fixing, U-steel laying, scaffold building and safe protective net hanging. According to the construction method for the outer wall socket type plate buckle steel pipe scaffold, the modularized design is adopted, the structure is simple and firm, assembling and disassembling are convenient and fast, the cost and the loss are reduced, the pollution is low, and the service life is long.