Connecting plate for inner corner position of double-layer steel shell combined tower and mounting method of connecting plate

According to the connecting plate for the inner corner position of the double-layer steel shell combined tower and the mounting method of the connecting plate, welding parts at the two corners of one side edge of the plate body are welded to two adjacent annular reinforcing ribs on the inner side of the outer-layer steel shell; meanwhile, a top edge and a bottom edge close to the other side edge of the plate body are welded to the two adjacent annular reinforcing ribs at the angular point positions of the outer side of the inner-layer steel shell correspondingly, so two side edges of the inner-layer steel shell are prevented from expanding towards the direction where the outer-layer steel shell is located, and the situation that right-angle angular point force formed by the two side edges of the inner-layer steel shell flows to concrete to be diffused is avoided; gusset plates are prevented from being arranged on the annular reinforcing ribs, integrity of the annular reinforcing ribs is guaranteed, the influe