Tunisia has many isolated areas characterized by low rates of population in cores dispersed; suffering from water supply problems for consumption and irrigation. The photovoltaic pumping systems present the ideal solution for these problems. There is somes information like water flow rate, voltage and current of PV field, in addition to other meteorological information such as global solar irradiation on an inclined and horizontal surface and ambient temperature are used in the design of a Photovoltaic Water Pumping project. The current study proposes the sizing, designing, simulation and installation (practice) of a solar water pumping station located in Ben Guerdane -Tunisia that uses immersed pump and an AC Motor. In order to build a new station, the well, the storage tank, panels support and position of the solar panels were redesigned using AutoCAD and SolidWorks. Finally the overall activity of the station was simulated using Matlab Simulink.