The utility model discloses a structure for locating a scaffold. The structure comprises a connecting plate, a steel beam, an upper locating mechanism and a lower locating mechanism. One end of the steel beam is connected to the right end face of the connecting plate, the steel beam is perpendicular to the connecting plate, an upper locating penetrating hole and a lower locating penetrating hole are formed in the connecting plate, the upper locating mechanism and the lower locating mechanism both comprise steel rib sleeves, outer locating bolts and outer limiting nuts arranged on the outer locating bolts in a sleeved mode, a screw rod of the outer locating bolt in the upper locating mechanism penetrates through the upper locating penetrating hole and is embedded into the steel rib sleeve of the upper locating mechanism, a screw rod of the outer locating bolt in the lower locating mechanism penetrates through the lower locating penetrating hole and is embedded into the steel rib sleeve of the lower locating mechanism, the outer limiting nuts are placed on the right side of the connecting plate and fastens the left end face of the connecting plate, and the outer limiting nuts are attached on the outer wall face of a shear wall. When the structure is used, inner locating is carried out through the steel rib sleeves, the steel beam is fixed through the upper locating mechanism and the lower locating mechanism, a large hole for steel beam embedding does not need to be reserved, and influence on building structure intensity is low.