A wide-angle lens assembly includes a front lens group and a rear lens group. The front lens group includes a first lens having negative refractive power and a second lens having negative refractive power, wherein the first lens is a meniscus lens and the second lens includes a concave surface facing an image side. The rear lens group includes a third lens having positive refractive power, a fourth lens having positive refractive power, and a fifth lens having negative refractive power, wherein the fifth lens includes a concave surface facing an object side. The wide-angle lens assembly satisfies: 13.6 mm≤fK−f1≤25.2 mm; wherein fK is an effective focal length of a lens third close to the image side and f1 is an effective focal length of the first lens.