An optical imaging lens includes a plurality of lens elements having a refracting power, an object-side surface facing toward the object-side, and an imaging-side surface facing toward the imaging-side. The plurality of lens elements include a first lens element closest to the object-side, a second lens element second closest to the object-side, and a third lens element third closest to the object-side. The plurality of lens elements also include a fourth lens element closest to the imaging-side.