Laser specific energy significantly impacts the quality of composite coatings. Ti−Al/WC coatings were prepared on the TC21 alloy through laser cladding with specific energy ranging from 66.7 to 133.3 J/mm². The results indicate that the composite coatings primarily comprised Ti₂AlC, α₂-Ti₃Al, γ-TiAl, TiC, and W phases. A gradual increase in the relative intensity of the diffraction peaks of Ti₂AlC, α₂-Ti₃Al, and TiC appeared with the increase of specific energy. When the specific energy was 116.7 J/mm², the Ti−Al/WC coated alloy achieved a maximum micro- hardness of HV_0.2 766.3, which represented an increase of 1.96 times compared with TC21 alloy, and the minimum wear rate decreased dramatically. Much improvement in tribological properties was attained through the fine-grained strengthening of the (α₂+γ) matrix and the dispersion strengthening of self-lubricating Ti₂AlC and intertwining TiC. This study provides valuable insights for the development of high-performance Ti−Al composite coatings.