The invention relates to a wall body arrangement method. The wall body arrangement method includes the following steps that a wall plate is arranged in an installation groove, and at the time, the wall plate presses a bottom pressing block; the horizontality of the wall plate during arrangement is guaranteed through the bottom pressing block; the wall plate presses a first adjustment plate, the first adjustment plate relieves grasping of an adjustment pillar, and the adjustment pillar is in a movable state; the adjustment pillar slides upwards under the action of an adjustment resetting part and pushes a second adjustment plate to slide outwards; and when the second adjustment plate abuts against the wall plate, the wall plate does not press the first adjustment plate any more, and at the time the wall plate is vertical. According to the wall body arrangement method, installation of the wall plate is completed by matching of an installation seat assembly and a vertical correction assembly which are matched mutually, the structure is simple, and rapid construction of a wall body is facilitated.