By energy needs in the future, how to design electrical powered unmanned aerial vehicles became the main goal for our lab. In addition, to design electrical powered unmanned aerial vehicles also became the target to this research. Energy distribution’s feasibility assessment is the first priority to adapt to the difference of missions requirements or the difference of the performance requirements. Through this feasibility assessment to choose a reasonable type of power, which is electrical powered, to accomplish the following aircraft design. After all, Matlab is used as a development tool in this research and for further research.