Theoretical expressions of the radiation pressure for a dielectric sphere in the Rayleigh regime of light scattering under illumination of axial superposition of two Gaussian beams with different waist positions are derived. The results show that the standing wave trap produced by axial coherent superposition of non paraxial Gaussian beams is better than that of paraxial Guassian beams. On the other hand, the non paraxial standing wave trap produces stronger radiation forces than single beam trap. Moreover, the depth of potential well is four times deeper than that of single beam trap.