An adjusting mechanism of a box, comprising: a first adjusting structure which comprises a first base, a rotating member arranged on the first base, an adjusting lock hook movably arranged on the rotating member and a driving member arranged in the rotating member and configured to drive the adjusting lock hook to move, wherein the rotating member is able to drive the adjusting lock hook to rotate when rotating such that the adjusting lock hook has a locking position and an unlocking position; and a second adjusting structure which comprises a second base and an adjusting rod movably arranged in the second base, wherein the adjusting lock hook is in the locking position when the adjusting lock hook cooperates with the adjusting rod, and the adjusting lock hook is in the unlocking position when the adjusting lock hook is separated from the adjusting rod; characterised in that a moving direction of the adjusting lock hook is perpendicular to an axis of the rotating member, a moving direction of the adjusting rod is parallel to the axis of the rotating member; the driving member comprises a driving block and a driving rod, a guide groove is provided in the rotating member, the driving block is movably arranged in the guide groove along the axis of the rotating member, the driving rod penetrates the rotating member and drives, in a rotating manner, the driving block to move, and an axis of the driving rod is perpendicular to a moving direction of the adjusting lock hook; wherein the driving block is provided with a strip-shaped adjusting hole, the adjusting lock hook is provided with a connecting column penetrating the strip-shaped adjusting hole, and the strip-shaped adjusting hole is inclined relative to the moving direction of the adjusting lock hook; wherein the guide groove extends in a direction of a rotating axis of the rotating member, an axis of the driving rod is parallel with the rotating axis of the rotating member, when the driving block moves along the guide groove, the driving block drives the connecting column positioned in the strip-shaped adjusting hole to move together, and further the driving block drives the adjusting lock hook to move; wherein the first base is provided with a first mounting hole and a first avoiding groove in communication with the first mounting hole, the rotating member is arranged in the first mounting hole, a side wall of the rotating member is further provided with a guide hole in communication with the guide groove, the driving block is internally provided with a second avoiding groove in communication with the guide hole, and a part of the adjusting lock hook penetrates the second avoiding groove, the guide hole and the first avoiding groove. a first adjusting structure which comprises a first base, a rotating member arranged on the first base, an adjusting lock hook movably arranged on the rotating member and a driving member arranged in the rotating member and configured to drive the adjusting lock hook to move, wherein the rotating member is able to drive the adjusting lock hook to rotate when rotating such that the adjusting lock hook has a locking position and an unlocking position; and a second adjusting structure which comprises a second base and an adjusting rod movably arranged in the second base, wherein the adjusting lock hook is in the locking position when the adjusting lock hook cooperates with the adjusting rod, and the adjusting lock hook is in the unlocking position when the adjusting lock hook is separated from the adjusting rod; characterised in that a moving direction of the adjusting lock hook is perpendicular to an axis of the rotating member, a moving direction of the adjusting rod is parallel to the axis of the rotating member; the driving member comprises a driving block and a driving rod, a guide groove is provided in the rotating member, the driving block is movably arranged in the guide groove along the axis of the rotating member, the driving rod penetrates the rotating member and drives, in a rotating manner, the driving block to move, and an axis of the driving rod is perpendicular to a moving direction of the adjusting lock hook; wherein the driving block is provided with a strip-shaped adjusting hole, the adjusting lock hook is provided with a connecting column penetrating the strip-shaped adjusting hole, and the strip-shaped adjusting hole is inclined relative to the moving direction of the adjusting lock hook; wherein the guide groove extends in a direction of a rotating axis of the rotating member, an axis of the driving rod is parallel with the rotating axis of the rotating member, when the driving block moves along the guide groove, the driving block drives the connecting column positioned in the strip-shaped adjusting hole to move together, and further the driving block drives the adjusting lock hook to move; wherein the first base is provided with a first mounting hole and a first avoiding groove in communication with the first mounting hole, the rotating member is arranged in the first mounting hole, a side wall of the rotating member is further provided with a guide hole in communication with the guide groove, the driving block is internally provided with a second avoiding groove in communication with the guide hole, and a part of the adjusting lock hook penetrates the second avoiding groove, the guide hole and the first avoiding groove.