In this study, we propose a strategy for the in-situ formation of array Nitride phase to enhance the wear performance of eutectic high-entropy alloy coating. At both room temperature and 600℃, the wear resistance of the coating significantly surpasses that of the substrate. The wear volume loss of this coating at RT and 600℃ are 1.79% and 0.33% of the Ti-6Al-4V alloy. Characterization through SEM and EBSD revealed that no plastic deformation occurred in the sub-surface of the coating. Instead, a substantial number of dislocations and sub-grain boundaries were distributed within the gaps of the Nitride phase. This coating and technology hold promise for applications in wear-resistant protection for titanium alloys.