Steel template for building

The utility model discloses a steel template for a building. The steel template for the building comprises a template panel in a rectangular structure, wherein connecting frames are vertically arranged at the periphery of the template panel; each connecting frame comprises an outer flange plate and an inner flange plate both in gap arrangement; multiple groups of connecting holes are formed in each outer flange plate and each inner flange plate in a corresponding and balanced manner. A positioning bump being flush with the edge of the template panel is arranged on the outer side of each outer flange plate. The positioning bumps are positioning lug bosses arranged at the periphery of the connecting holes or positioning convex bars arranged horizontally along the transverse directions of the outer flange plates. The gap between each inner flange plate and each outer flange plate is 15-30 mm. The steel template for the building has the advantages of being simple in structure, convenient to assemble and disassemb