Abstract: Zr₆₅Al_7.5Ni₁₀Cu_17.5 composite coatings on Ti substrate were produced by laser cladding. The microstructure of the coating was investigated by means of SEM，TEM and XRD. The results showed that the coatings mainly consisted of intermetallic phases，amorphous phase and nanocrystalline phase，of which the intermetallic phases were Al2Zr3，CuZr2 and Zr2Ni，and the nanocrystalline phase was Al2Zr3 with P42 structure，whose cell parameters were a=b=7.618 nm，c=6.985 nm. The coating could be divided into three layers according to the difference of microstructure morphology，viz，dendrite zone on the surface，fine crystalline zone in the middle，and bonding zone.