Despite two-body systems which can be solved easily and accurately,solving three-body systems and more are much more complicated. One of the most powerful methods to study the few-body problems is Faddeev method. one can solve Faddeev equations in a 3D momentom space. The representation of the Faddeev equations in the three-dimensional view of the momentum leads to a triple integral equation that simplifies the solution of the Faddeev equations. In the Faddeev method, a nucleus is studied by considering the two-body forces. As an application of this method, in this thesis, we investigated a three-nucleon system in a three-dimensional point of view, and computed the nucleon mass and bound state energy of this system. It should be noted that in this calculation, the three-body force is not taken into account and the three-nucleon system is not depend on the spin and isospin degree of freedom.