The invention discloses an automatic section-by-section conveying line device for bottled liquid. The automatic section-by-section conveying line device for the bottled liquid comprises a straight conveying line mechanism, a section-by-section steering gear, a guiding device, a shaping transition device and a section-by-section conveying line mechanism. The straight conveying line mechanism comprises adjustment ground feet, supports, a straight conveying side plate, a driven wheel, a driven chain wheel, a tension wheel, a driving chain wheel, a straight motor, stop levers, stop lever supports, a conveying belt and rollers. The adjustment ground feet are connected with the supports through threads, so that the height of the whole device is adjusted. An air cylinder stretches and retracts to drive materials in the section-by-section steering gear to move. The production cost is reduced; and linear movement of the air cylinder is converted into rotation of an execution mechanism, the mechanical structure is simplified, and meanwhile, the strength of the mechanisms is well maintained.