A laser measuring device (50) including a housing (56) with a laser device present therein for generating and projecting at least one laser beam (52, 54), perpendicular to an alignment surface (34) of the housing, or to a mount (14) that is connected to the housing. In order to enable an exceedingly precise alignment of a laser beam to the center point of an opening in a room boundary, such as the floor, without requiring costly adjustment operations, it is proposed that the alignment surface (34) be equipped with at least three synchronously adjustable positioning elements, which lie in a circle, through the center point of which the laser beam (54), which extends perpendicular to the alignment surface (34), or its extension, passes.