Abstract: A method of measuring machine height of a surveying machine includes setting a surveying machine such that the machine center situates on a vertical line passing through a measuring point defining a crossing point between a horizontal line passing through the machine center of the surveying machine and the side of the machine as the machine height point, determining a point symmetrical with the machine center with respect to a segment connecting the machine height point and a measuring point as the machine center symmetrical point, and measuring the distance between the determined machine center symmetrical point and the measuring point as the machine height. A machine height measuring device for a surveying machine includes an elongate bar and a cursor slidably disposed on the bar such that the cursor is perpendicular to the bar. The bar has a linear scale provided thereon and a tapered tip end which allows the measuring point to be indicated as a point.