Abstract: In the thermal management of liquid-cooled array electronic equipment, the flow distribution efficiency of coolant liquid critically impacts both the internal device temperature levels and electrical performance. The flow distribution characteristics of liquid-cooled array equipment distributors are focused on in this paper. Through numerical analysis methods, the flow distribution patterns under varying operating conditions, flow resistance properties, and distributor structural configurations are systematically investigated. The results demonstrate that incorporating a water-drop-shaped pressure-regulating structure in the static pressure chamber of the distributor significantly enhances system flow diversion effect. Under the same equivalent hydraulic diameter of the branch, both the flow deviation and flow maldistribution coefficient of the branch increase with the rise of the system's supply flow rate. Meanwhile, when the pressure drop across the branch increases, the system's flow deviation decreases, and flow uniformity is improved.