An optical imaging lens includes: a first, second, third, fourth, fifth and sixth lens element, the first lens element has negative refractive power, the second lens element has negative refractive power, the third lens element has refractive power, the fourth lens element having an image-side surface with a convex portion in a vicinity of the optical axis, the fifth lens element having an image-side surface with a convex portion in a vicinity of the optical axis, and the sixth lens element having an image-side surface with a concave portion in a vicinity of its periphery, wherein the optical imaging lens set does not include any lens element with refractive power other than said first, second, third, fourth, fifth and sixth lens elements.