Abstarct: We calculate the relativistic wave function for quarks in a scalar-vector potential, analytically and after that the electromagnetic form factors of proton are calculated using the wave function. The internal quark motion is described by the Jacobi coordinate and . In order to describe three quark dynamics it is convenient to introduce the hyperspherical coordinates, which are obtained substituting the absolute values and in , where is the hyper radius. In the end, the charge radius and magnetic moment of the proton is calculated by attention to the electromagnetic form factors. The results show considerable correction, especially for the magnetic moment.