Abstarct: Dasht-e bu region in northwest of Damghan city, is part of southern half of eastern Alborz. Stratigraphic study confirms the existence of Mesozoic and Cenozoic rock units with general northeast-southwest trend in this area. The folding of rock units can be seen in blocks that bounded to faults.Studied folds, baxsed on interlimb angle(Fleuty 1964), are mainly in category of Open and a few of them are in the category of Gentle and Close. Also baxsed on the dip of axial plane and plunge of hinge line, these folds are in two categories of Upright-gently plunging and steeply inclined-¬gently plunging. The Main faults of the region like Mila, Mahtab and Sabur with northeast-southwest trend have left lateral reverse mechanism. The transverse faults like North touye and Cheshme gholghol with NNW-SSE trend, have right lateral reverse mechanism. Dashtebu fault with approximately north-south trend has dominantly left lateral recent mechanism. Geometrical arrangement and kinematic pattern of faults and folds confirms with the regional left lateral transpresional deformation model in the Alborz region. Both transpresional and longitudinal faults are not baxsement type and the transverse faults can be tear faults related to Alborz fold-trust belt. Geometrical and kinematic relationship between longitudinal and transverse faults indicates that the main longitudinal faults can be considered as transfer fault (lateral ramp) for transverse faults. Geomorphic features of the region are mainly affected by structural elements, especially faults. Mila, Mahtab, North touye and Cheshme gholghol, with dominantly reverse component, has a great impact on formation of the heights.