The observation was conducted for the same regions from mutually different observation points by utilizing terrestrial LiDAR, the point group data whose coordinates had been converted by using the control points have been regarded as single plane through plane equation, and then an error of the point group data was adjusted by rotating and displacing in parallel them in the center of the plane obtained by averaging coefficients of this plane equation. The results have shown that a standard deviation of the elevation of the point group data is reduced by approximate 15mm than before the adjustment of errors.