Origami is a Japanese art of folding paper. Recently it has started to be used in aerospace applications such as deployable masts, satellite antennas, and in architectural applications such as emergency shelters, temporary shelters, portable exhibition stands. Deployable plate structures based origami art are attractive to both architects and engineers because of their structural and spatial qualities. They have special geometries according to the rigid origami patterns. The Miura-Ori is a rigid origami pattern that is formed from a tessellated arrangement of a single repeated unit consists of four quadrangle plates. It has fully folded and fully deployed configurations. This research investigates geometric and mobility aspects of Miura-Ori pattern with its derivations and explore the possibilities of constructing a deployable plate structure using the same pattern. The first part of the research investigates geometry of the Miura patterns. The aim is to generate derivations by changing the input parameters. Small scale physical models are built to verify the geometric design guidelines. Miura unit consisted of four plates and four joints is a single degree of freedom spherical mechanism. The second part of the research is concentrated on mobility analysis. The aim is to develop a method for removing excessive plates and joints without changing the mobility. The established equations assist us to determine nth term of the excessive plates and joints. A Method of Double Arrangement (MoDA) is developed in order to determine the placement of excessive plates. Finally, a deployable plate structure based on Miura-Ori pattern is proposed for an architectural application. However, the plates cause obstruction of the sky, thereby affecting sunlight and daylight availability inside the building. Thus, some excessive plates are reduced according to the proposed method. The final form of the structure lets to get more energy from the sun to provide heating and lighting. Keyword: rigid origami, Miura-Ori, spherical mechanisms, mobility.