An optical imaging lens, including a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, and a seventh lens element sequentially arranged along an optical axis from an object side to an image side, is provided. Each of the first lens element to the seventh lens element includes an object-side surface and an image-side surface. An optical axis region of the object-side surface of the first lens element is convex. A periphery region of the image-side surface of the second lens element is concave. The fourth lens element has positive refracting power, and an optical axis region of the object-side surface of the fourth lens element is concave. An optical axis region of the image-side surface of the fifth lens element is convex.