A master's thesis in the College of Engineering at the University of Basrah discussed (the seismic behavior of Schwedler's domes) submitted by the student Asmaa Faleh Dakhil. Investigation of Seismic Behavior of Schwedler Domes Description (SAP2000 Version 24) 54 models with a diameter of 60 meters and different engineering characteristics, high different All these models are designed and analyzed Structurally under the influence of Earth's gravitational potential only. The natural dynamic properties of these structures were studied, As the natural frequency of the structure and the percentage of mass participation in the three directions (x, y, z), then shed It has seismic loads, where the seismic behavior of the Schwedler domes was studied using the time-history method linear. The purpose of the thesis is to study the seismic behavior of the Schwedler Domes. The thesis concluded that the models (A) and (B) have phases Vibration and dynamic response are almost identical. As for the height-to-diameter ratios, their effect was very significant on Dynamic properties In general, Schwedler domes are considered to be efficient in resisting earthquakes.