The invention provides a vertical rolling marking machine. The machine comprises a base, an upper seat, a sliding seat and a height adjustment mechanism, wherein the upper seat is fixedly arranged onthe base. The sliding seat is provided with a sliding table, the bottom of the sliding table is provided with a sliding groove group, and the sliding groove group is connected with a sliding key. Thesliding table is connected with a character disc shaft, wherein the position close to the top of the character disc shaft is provided with a rolling needle bearing, the outer of the rolling needle bearing is sleeved with a character disc, one end of the character disc is connected with a handle, and the rolling needle bearing holds a character pressure pad. The upper seat is provided with an upperseat bottom plate and an upper vertical plate, wherein the upper vertical plate is connected with the upper seat bottom plate. The upper seat vertical plate is provided with a horizontal adjusting screw rod, wherein a first end of the horizontal adjusting screw rod is in threaded connection with the sliding seat, and the size of the diameter of a rolling making piece can be adjusted through rotating the horizontal adjusting screw rod so as to realize the adjustment of the horizontal position. According to the vertical rolling marking machine, the character rolling height can be adjusted through the height adjustment mechanism according to the character roll height of a bar, so that the height position can be further adjusted, in this way, the dynamic adjustment in the vertical and horizontal directions can be simultaneously realized. The character disc and two positioning guide wheels form a certain geometric angle, so that the bar can be well positioned, thus increasing the characterrolling accuracy.