The present disclosure provides an optical imaging lens, comprising, in order from an object side to an image side: a first lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof; a second lens element; a third lens element having positive refractive power; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof, an image-side surface being convex in a paraxial region thereof, and both the object-side surface and the image-side surface being aspheric; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, at least one convex shape in an off-axial region on the image-side surface, and both an object-side surface and the image-side surface being aspheric. There are a total of six lens elements.