A tower tube section comprising: a tower tube section body; a reinforcing assembly comprising a supporting member connected to the tower tube section body and a plurality of reinforcing cables connected to the supporting member, wherein the plurality of reinforcing cables are spaced apart from each other along a circumferential direction of the tower tube section body, each of the plurality of reinforcing cables extends along an axial direction of the tower tube section body and is apart from a periphery surface of the tower tube section body in a radial direction of the tower tube section body by a predetermined distance, wherein the supporting member comprises two or more supporting plates arranged at intervals along the axial direction and respectively connected to the tower tube section body, each of the supporting plates comprises a laminated portion connected to the tower tube section body in laminating manner and a protruding portion connected to the laminated portion and protruding out of the tower tube section body in the radial direction and each of the plurality of reinforcing cables is connected to the protruding portion, wherein at least one of the supporting plates further comprises a position limiting portion, and the position limiting portion is arranged opposite to the protruding portion in the radial direction and connected to the laminated portion, and the position limiting portion at least partially protrudes out of the laminated portion in the axial direction, wherein the position limiting portion is a closed ring extending along the circumferential direction; or the position limiting portion comprises a plurality of position limiting units, and the plurality of position limiting units are arranged at intervals around the axis of the tower tube section body together and respectively connected to the laminated portion, and at least one end of each of the plurality of position limiting units in the axial direction protrudes out of the laminated portion. a tower tube section body; a reinforcing assembly comprising a supporting member connected to the tower tube section body and a plurality of reinforcing cables connected to the supporting member, wherein the plurality of reinforcing cables are spaced apart from each other along a circumferential direction of the tower tube section body, each of the plurality of reinforcing cables extends along an axial direction of the tower tube section body and is apart from a periphery surface of the tower tube section body in a radial direction of the tower tube section body by a predetermined distance, wherein the supporting member comprises two or more supporting plates arranged at intervals along the axial direction and respectively connected to the tower tube section body, each of the supporting plates comprises a laminated portion connected to the tower tube section body in laminating manner and a protruding portion connected to the laminated portion and protruding out of the tower tube section body in the radial direction and each of the plurality of reinforcing cables is connected to the protruding portion, wherein at least one of the supporting plates further comprises a position limiting portion, and the position limiting portion is arranged opposite to the protruding portion in the radial direction and connected to the laminated portion, and the position limiting portion at least partially protrudes out of the laminated portion in the axial direction, wherein the position limiting portion is a closed ring extending along the circumferential direction; or the position limiting portion comprises a plurality of position limiting units, and the plurality of position limiting units are arranged at intervals around the axis of the tower tube section body together and respectively connected to the laminated portion, and at least one end of each of the plurality of position limiting units in the axial direction protrudes out of the laminated portion.