This research use different nano particle deal with the Nomex dyeing fabric on the post-processing, and change nano meter particle concentration on the processing, in order to advance the lightness of Nomex dyeing fabric, and we discuss the lightness and physics property with different nano meter concentration of Nomex. In this research we also use different basic dyes to research lightness and use different nano effect of dye. By the experimental result, the Nomex fabric after the post-processing, it’s lightness can advance 1 to 2.And the strength with softness after UV light burn can produce reduces and changes the hard tendency, but passes through the nano particle to process after Nomex fabric its softness and the force its drop tendency can slow down. Moreover L.O.I. has processed after nano meter particle, can advance 1 to 2, although after long time ultraviolet ray illumination, L.O.I is the same.