The invention provides a full-automatic carton sealing machine structure. The structure comprises a carton obtaining device, a cylinder device, a bevel rotary table mechanism, ejector rod and turnover plate mechanisms and an adhesive sealing mechanism. The carton obtaining device comprises a carton collecting barrel and an elastic pressing plate, and the elastic pressing plate is arranged on one side of the carton collecting barrel which is arranged on the upper portion of a machine frame. A ball screw is arrange under an outlet of the carton collecting barrel, the whole bevel rotary table mechanism is mounted on the ball screw, the adhesive sealing mechanism is arranged opposite to the carton collecting barrel, and the adhesive sealing mechanism and the carton collecting barrel are located on the same plane. The ejector rod and turnover plate mechanisms are arranged on the two sides of the machine frame, a right turnover plate and a left turnover plate of the ejector rod and turnover plate mechanisms are flush with the bottom of the carton collecting barrel, an ejector rod body is vertically arranged on the lower portion of the corresponding turnover plate, the cylinder device is arranged on one side of the right turnover plate and comprises a cylinder body and a carrying plate, the cylinder body is arranged on the carrying plate, and the cylinder body is flush with the corresponding turnover plate. By means of the full-automatic carton sealing machine structure, the defects that an existing larger pipelined carton packaging machine is extremely large in occupied area, high in device cost and maintenance cost, complex in structure and operation, poor in start-stop flexibility and the like are overcome, the full-automatic carton sealing machine structure has the advantages that the comprehensive benefits of size, cost and efficiency can be optimized.