Connecting structure, furniture and furniture assembling method

The invention discloses a connecting structure, furniture and a furniture assembling method.The connecting structure comprises a fastening assembly, the fastening assembly comprises a first fixing body, a second fixing body and a rack structure, the first fixing body is provided with a limiting groove, the rack structure is installed on the first fixing body, and meshing teeth of the rack structure are arranged towards the side close to the limiting groove; the extension direction of the rack structure is consistent with the extension direction of the limiting groove, the second fixing body is provided with a through hole, the inner wall of the through hole is provided with a first internal thread, and the periphery of the second fixing body is provided with an external thread; the connecting assembly comprises a connecting rod and a driving part connected with the connecting rod, meshing teeth matched with the rack structure are arranged on the periphery of the driving part, the driving part is movably conne