The invention discloses an optical imaging lens and an electronic device utilizing the same. The optical imaging lens sequentially comprises an aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side. The first lens is provided with the refractive rate. An image side of the second lens is provided with a concave surface portion in the vicinity of the circumference, an object side of the third lens is provided with a concave surface portion in the vicinity of the circumference, an object side of the fourth lens is provided with a concave surface portion in the vicinity of the optical axis, the fifth lens is provided with refractive rate, and an object side of the sixth lens is provided with a convex surface portion in the vicinity of the optical axis. The optical imaging lens meets the condition of ALT / T5<=6.90. The electronic device comprises a casing and an imaging module mounted in the casing. The imaging module comprises the optical imaging lens, a lens cone, a module holder unit and an image sensor. By the aid of matching of the lenses, the optical imaging lens has the advantages that imaging quality and microminiaturization can be improved.