A support assembly for tower tube segment , wherein, the support assembly comprises: a fixing member , extending in a first direction (X); a first hinge member , stacked on the fixing member on a second direction (Y) and connected to the fixing member ; a support member , spaced apart from the first hinge member in the first direction (X), and stacked on the fixing member on the second direction (Y) and connected to the fixing member ; wherein in the second direction (Y), a height of the support member is higher than that of the first hinge member , the first hinge member is adapted to rotatably connect with the tower tube segment and serve as a rotation fulcrum of the tower tube segment , and the support member is adapted to support the tower tube segment to maintain a position of the tower tube segment relative to the first hinge member , wherein the support assembly further comprises a second hinge member disposed on the support member , and the second hinge member comprises a third end and a fourth end opposite to each other, wherein the third end is fixedly connected with the support member , the fourth end is adapted to support the tower tube segment and rotatably connect with the tower tube segment , and a connection line between the third end and the fourth end intersects the first direction (X) with an intersection angle of b, wherein a numerical range of b is 0° to 120°, characterized in that , the support assembly further comprises an adapting member , the adapting member comprises a first adapting lug rotatably connected with the first hinge member and a second adapting lug rotatably connected with the second hinge member , and the first adapting lug and the second adapting lug can be fixedly connected to the tower tube segment . a fixing member , extending in a first direction (X); a first hinge member , stacked on the fixing member on a second direction (Y) and connected to the fixing member ; a support member , spaced apart from the first hinge member in the first direction (X), and stacked on the fixing member on the second direction (Y) and connected to the fixing member ; wherein in the second direction (Y), a height of the support member is higher than that of the first hinge member , the first hinge member is adapted to rotatably connect with the tower tube segment and serve as a rotation fulcrum of the tower tube segment , and the support member is adapted to support the tower tube segment to maintain a position of the tower tube segment relative to the first hinge member , wherein the support assembly further comprises a second hinge member disposed on the support member , and the second hinge member comprises a third end and a fourth end opposite to each other, wherein the third end is fixedly connected with the support member , the fourth end is adapted to support the tower tube segment and rotatably connect with the tower tube segment , and a connection line between the third end and the fourth end intersects the first direction (X) with an intersection angle of b, wherein a numerical range of b is 0° to 120°, characterized in that , the support assembly further comprises an adapting member , the adapting member comprises a first adapting lug rotatably connected with the first hinge member and a second adapting lug rotatably connected with the second hinge member , and the first adapting lug and the second adapting lug can be fixedly connected to the tower tube segment . <EOS>