Supporting and fixing platform for assisting vertical fin disassembly and assembly

The invention relates to the technical field of aviation, in particular to a supporting and fixing platform for assisting vertical fin disassembly and assembly. A plurality of supports are arranged on a rack of the supporting and fixing platform for assisting vertical fin disassembly and assembly, intersection point positioning parts are arranged on the supports, and the vertical fin on the supporting and fixing platform is positioned and fixed through the intersection point positioning parts, so that the assembly requirement of the vertical fin for a bottom area of a folding table is ensured; and in addition, each intersection point positioning part comprises a main body and two guide parts protruding from the upper end face of the main body, the position of a corresponding connecting hole in the lower end of the vertical fin can be inserted into the position between the two guide parts, a taper pin piece is inserted into the connecting hole, and therefore it is ensured that the vertical fin is fixedly conne