The invention discloses an optical imaging lens which comprises first to fifth lenses along the optical axis successively from the object side to the image side. Each lens comprises an object side surface and an image side surface. The first lens includes a negative refractive index, and the object side surface of the first lens includes a convex surface part positioned near the optical axis. Theobject side surface of the second lens includes a convex surface part positioned near the circumference, and the image side surface of the second lens includes a convex surface part positioned near the optical axis. The image side surface of the third lens includes a concave surface part positioned near the optical axis. The fifth lens includes a negative refractive index, and he image side surface of the fifth lens includes a concave surface part positioned near the optical axis and a convex surface part positioned near the circumference. According to the optical imaging lens, the imaging quality is high, the lens is shorter, and the optical imaging lens has a thermal stability.