The invention relates to an automatic packing machine for a tubular product. The automatic packing machine comprises a rack, a work table, packing bags, a bagging device, a bag cutting device, a sealing device, a discharge device and a control device, wherein, the packaging bags are arranged at one end of the work table; the bagging device is used for dragging the packing bag from one end of a tubular product set to the other end of the tubular product set; the bag cutting device is used for cutting off the packing bag sleeved outside the tubular product set; the sealing device is used for sealing the ends of the bagging bags at the two ends of the tubular product set; the discharge device is used for discharging the packed tubular product set from the work table; and the control device is used for controlling the work table, the bagging device, the bag cutting device, the sealing device and the discharge device to synergistically work. The control device is arranged to control the working table, the bagging device, the bag cutting device, the sealing device and the discharge device to synergistically work according to the order of taking materials, bagging, cutting bag, sealing and discharging, so that the automatic package of the tubular product set is realized, labor is saved, and the production cost is lowered; at the same time, because the whole process is automatically finished, continuous operation can be carried out on the multiple tubular product sets, so that the production efficiency can be greatly improved.