This report introduces a new 3D terrain information reconstructing application software for airborne interferometric SAR. This application enables (1) semi-automation of the reconstruction processing sequences and rapid availability of outcome as a consequence, and (2) composition of DEMs generated from data with different observation angles so that more information can be obtained. An outline of the reconstructing process and some examples of auto-generated DEMs, orthoimage, and perspective view are shown in this paper. The ground height obtained with this application showed quite good agreement with referential DEM and that measured by GPS.