Abstract: In the thermal management of array-type liquid-cooled electronic equipment, the flow distribution efficiency of coolant critically impacts both the internal device temperature levels and electrical performance. This study focuses on the flow distribution characteristics of liquid-cooled array distributors. Through numerical analysis methods, we systematically investigate the flow distribution patterns under varying operating conditions, flow resistance properties, and distributor structural configurations. The results demonstrate that incorporating a water-drop-shaped pressure-regulating structure in the static pressure chamber of the distributor significantly enhances system flow uniformity. Under identical branch hydraulic diameters, both the flow deviation ratio and flow imbalance coefficient increase with rising system supply flow rates, accompanied by elevated branch pressure drops. Conversely, the system flow deviation decreases and distribution uniformity improves with optimized structural interventions.