Abstarct: Due to limited resources, a human needs to find new energy sources. One of these energy sources are derived from response fusion. In order to provide safe energy from the fusion process , plasma focus device for the first time in 1960 and independently in both America and the Soviet Union was built on the model of Mather and Filippof. The major difference between two models is the ratio anode radius to its length. Using plasma focus devices can be pulsed plasma lifetime of the high-temperature and high-density produced about. The pulsed plasma focus device as a source of X-rays, energetic ions, relativistic electrons and high energy neutron (if using deuterium gas) is considered later this year. Plasma focus devices have many applications such as medical industry, ion implantation, radioisotope production (if using deuterium gas), troubleshooting bodies is the fast and lithography. Various parameters involved in the optimization of plasma focus devices. These parameters can be the geometric parameters of the anode, cathode and insulating materials used in the device is also noted. Other parameters that are easier to change, working gas pressure, gas type and what are the voltage changes. This study is important in optimizing the parameters of the device. In this thesis given the significant role of these parameters on the performance plasma focus devices, the impact on the formation of plasma high voltage insulation and pressure is investigated.