A vertical web of an upper stool of a container vessel is disclosed. The vertical web of the upper stool of the container vessel according to one embodiment of the present invention is separately arranged in the inner longitudinal direction of the container vessel and includes a transverse barrier wall of which the upper stool is installed on the inner upper part; and the vertical webs which are installed in the transverse direction of the upper stool and arranged per each two row of the containers loaded on the container vessel.
