Aberrations consist of lens's own aberration and the aberration induced by wrong arrangement between lens and the light source. Before the performance test of lenses using optical interferometer, lens and the light source must be arranged so that aberration for wrong arrangement is eliminated. Lens arrangement has been performed by a trained labor. This paper proposes the scheme for the automatic lens arrangement in lens's performance testing. First, the fringe feature to represent aberrations induced by wrong arrangement is proposed. Next, the proposed feature and the corresponding aberration are learned by neural-network. Finally, closed control system is simulated.