<p>This work offers theoretical justification for the fabrication of CrMnFeCoNi coatings with superior characteristics by laser cladding (LC) technology. CrMnFeCoNi + x(TiC) high-entropy alloy (HEA) composite coatings were fabricated via LC, and the influence of ultrasonic impact treatment (UIT) on the microstructure and characteristics of the composite coatings including ceramic phases was thoroughly examined. The results indicate that as the TiC content in the coating increases, the average microhardness of the CrMnFeCoNi + x(TiC) coating surface rises. However, when the TiC content exceeds 8%, no significant further increase in hardness values is observed. In the CrMnFeCoNi + 8%TiC composite coating, the predominant crystalline structures are columnar and equiaxed crystals. The TiC particles within the coating exhibited incomplete dissolution, with a subset of TiC particles undergoing precipitation. The surface microstructure of the coating undergoes grain refinement and lattice distortion under the influence of UIT. Large columnar crystals fracture into smaller ones, and surface porosity is markedly reduced. UIT significantly enhances the microhardness of coatings. The hardness value of the CrMnFeCoNi + 8%TiC composite coating increased by 85.32% after UIT. The friction and wear experiments indicate that the implementation of UIT significantly decreases the wear rate of the coating, achieving a 67.07% reduction with the CrMnFeCoNi + 8% TiC composite coating.</p>