The invention provides a lens of vehicular lighting fitting capable of enhancing the lighting and non-lighting appearances of lighting fitting by preventing the mixing of colors in the single layer part of a two-color molded lens. This lens for vehicular lighting fitting comprises a post-placed surface-side light-colored second resin layer 24 and a first-placed highly-colored first resin layer 26,which are molded in layers, in which the second resin layer 24 is swollen to the first resin layer 26 side in a lamination part 23 so that the boundary surface 25 of the first and second resin layersis offset to the first resin layer 26 side by a predetermined distance [delta]. The first-place first resin layer 26 is partially melted by the contact with the second resin 24 in the post-placed andmelted state, and pulled by the flowing of the second resin layer 24. However, a stepped part 44b within a cavity part C1 corresponding to the swollen part 24b to the first resin layer 26 side of thesecond resin layer 24 works as a barrier to arrest the inflow of the molten first resin 26 to the second resin layer 24. Accordingly, inclusion of the highly-colored first resin resin 24 to the light-colored first resin layer 26 can be prevented, and a front lens 20 with good non-lighting appearance and a large emitting area can be obtained.