Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes: a lens group, including sequentially along an optical axis from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens that have refractive powers, where there is an air spacing between any adjacent two lenses in the first lens to the sixth lens along the optical axis, and an air spacing between the fifth lens and the sixth lens is minimum; at least one spacing element, including: a fourth spacing element disposed on an image side of the fourth lens and partially in contact with an image-side surface of the fourth lens; and a lens barrel, for accommodating the lens group and the at least one spacing element. The optical imaging lens assembly satisfies: 4.0<R8/d4s+T45/CP4<11.5.