in many buildings, especially intermediate and high-rise buildings, the use of a shear wall system as the main element of the seismicity within the boundaries of the structural plan, is commonplace as elevators and stairs. In the case of irregular openings, it is very difficult to be sure of the flexural behavior and the sufficient plasticity of the wall. Since the distance or space between the non-aligned openings is greater, this results in the formation of effective diameters of pressure and tension in the wall after the formation of diagonal cracks. Therefore, in this thesis, three construction frames (5, 10 and 15) of the floor under the three earthquake records (Bam, Manjil, and Tabas) were analyzed according to nonlinear time histories. Structures were originally modeled, linearly designed and designed in ETABS2000, and the lateral displacement of the building was controlled. Then, in SAP18.1.1, nonlinear analysis of the time history, then the stresses of concrete and rebar of shear walls were investigated.The results of the analysis show that the irregular opening of P5 in the 5-story building reduces the stress reduction of 70.6% over the regular opening. In the 10-story building, the irregular opening of P4 reduces the tension of 72% in the first area and decreases tension by 54% in the second zone than the regular opening. In the 15-story building, the irregular opening P4 is for the first and second areas, and P1 and P4 for the third zone.