To enhance the high-temperature wear resistance of MCrAlY coatings, 10   wt.% MoSi 2 particles were incorporated into a CoNiCrAlY coating via oscillating laser-directed energy deposition (OL-DED). The wear behavior of the coatings was systematically evaluated at room temperature, 500°C, and 900°C. Results indicate that the highly dynamic OL-DED molten pool promotes complete decomposition of MoSi 2, leading to uniform diffusion of Mo and Si and the in-situ formation of high-hardness (Cr, Mo) 3(Co, Ni) 5Si 2 and β phases uniformly dispersed within the γ-phase matrix. This microstructure provides synergistic wear resistance: the hard phases resist abrasion and plastic deformation, while the soft γ-phase absorbs strain energy. Increased hard-phase content also raises overall hardness, inhibiting subsurface deformation and preventing crack propagation in the protective oxide scale. Compared to the baseline CoNiCrAlY coating, the CoNiCrAlY-10MoSi 2 coating exhibits a lower friction coefficient and wear rate at all temperatures, with advantages becoming more pronounced at high temperatures. At 900°C, its average friction coefficient decreases significantly from 1.19 to 0.89, and the wear rate decreases from 0.62×10 -4 mm 3·N -1·m -1 to 0.48×10 -4 mm 3·N -1·m -1, a reduction of approximately 29.2%.