The invention provides a method for growing a AlMgB14 film layer on a base material and a product prepared through the same aiming at the detects that a film layer is poor in uniformity and low in shape follow-up performance when a protective film is generated on the surface of a base material in the prior art and the defects that a product is high in friction coefficient, poor in abrasion resistance and low in hardness in the prior art. The method for growing the AlMgB14 film layer on the base material comprises the steps that the AlMgB14 film layer is grown on the needed surface of the product through an atomic layer deposition method; a Al precursor, a Mg precursor and a B precursor react alternately; and after reaction of each precursor is completed, H plasmas are introduced, reduction reaction is conducted, and the AlMgB14 film layer containing a pure Al layer, a pure Mg layer and a pure B layer is obtained. The product prepared through the method is good in film layer shape follow-up performance, uniform in thickness, high in hardness and low in friction coefficient, the abrasion resistance of the product can be enhanced, and the service life of the product is prolonged.