Abstarct: Chahchaheh anticline is a part of North-east Kope dagh orogeny belt margin, Which occured in North-east Mashhad city by geographically. Staratigraphy studies of this area illustrates subsequences of Mesozoic and tertiary deposits. In order to identify the anticline 7 structural cross section were drawn. The calculated values for the anticline indicates: double plunge, wide(aspect ratio) and subangular(bluntness ratio) respectively. The chahchaheh anticline is totally classified as open and horizontal upright fold in fleuty classification(1964), and subangular baxsed on Bluntness ratio by 0.21-0.45. Also, it have been considered a Wide fold by Spect ratio in range of 0.16-0.30. Fractures analysis have been done in 23 station and classified on genesis association with anticline basis. Fracture examination was performed in 9 stations. Finally, with regard to the genesis associated of these fractures associated with anticline Chahchaheh, were classified in the category with folding. The three main categories of discontinuity was diagnosed. A- fractures of the general position (N020-040, 80-90SE / NW), B- fractures of the general position (N295-315, 65-85NE / SW), C- fractures of the general position (N345-013, 75-90NE / SW and N050-065, 75-90SW) That majority of fractures were observed with tensile nature. Finally, in order to identify Fractured oil and gas reservoirs, characterization of fractures such as (density and intensity) were calculated in eight explosures using scan sampling circular shape. Rock quality designation is another feature that was calculated by linear scaning method. RQD values over 93 percent were indicated high quality rock masses Which fall in the excellent range. Which is defined relatively, high values not resulted. According to the minimum distance 0.24 m for joints, can be consideredlow intensity for them. Joints classified from very low to very high intensity (according to the values of RQD) relatively. The orientation of the principal stresses δ1, δ2 and δ3 with respect to the elements of the anticline, 206/02, 116/07 and 311/83, respectively.