An optical lens set includes: a first, second, third, fourth, fifth and sixth lens element, said first lens element has negative refractive power, said second lens element has negative refractive power, said fourth lens element has an object-side surface with a convex portion in a vicinity of the optical axis, and said fifth lens element has an image-side surface with a concave portion in a vicinity of the optical axis, in addition, at least one lens element of the six lens elements disposed adjacent to an aperture stop has positive refractive power and made by glass material, except for the lens elements with glass material, other lens elements with refractive powers are plastic lens elements, the Abbe numbers of the second and the third lens element are ν2 and ν3 respectively, and the optical imaging lens satisfies: |ν2−ν3|≤15.000.