Abstract: The ions distribution of the Earths plasmasphere is mainly affected by the feature of the Earths magnetosphere. In early studies, its empirical models or semi-empirical models were only based on the data from in situ observation, and used to observe over the quiet period of the Earths magnetosphere. With the advances in the remote sensing technique, it provides an approach for imaging the Earths plasmasphere on a truly globalscale, and calculate its detailed information during the geomagnetic disturbance period or the geomagnetic quiet period. In this paper, we studied the several populated models of the Earths plasmasphere, elaborated their difference in description forms and application range, then gave the method of simulation imaging by the extreme ultraviolet (EUV) sensing technology. In the final, the simulation result of EUV images was given from the 4 viewpoints of the satellite orbit.