To improve the wear property of magnesium alloy, wear-resistant TiC and in-situ ZrC co-reinforced Zr-based amorphous composite coating can be fabricated on AZ91D magnesium alloy by laser cladding using mixed powders Zr-Cu-Ni-Al/TiC. The microstructure of the coating was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The wear resistance of the coating was evaluated under dry sliding wear test condition at room temperature. The results show that the coating mainly consists of amorphous and different intermetallic phases. The coating exhibits excellent wear resistance due to the recombination action of amorphous and intermetallic compounds. And the wear resistance was improved further with the increase of TiC content. The main wear mechanism of the coating and the AZ91D sample are different, the former is fatigue peeling and adhesive wear and the latter is abrasive wear.