Abstract: In order to reduce the thermal resistance and maximum temperature difference of the uniform temperature plate used in hydrogen fuel cell thermal management, a computational model of the uniform temperature plate is constructed based on theoretical calculations and experimental validation. A four-factor three-level orthogonal experimental optimization scheme is implemented to determine the significant factors affecting the heat transfer performance of the uniform temperature plate, including working fluid type, filling ratio, layout angle, and condenser length. Through range analysis, the weight relationship between the four factors and the thermal resistance and maximum temperature difference of the uniform temperature plate is obtained. The results show that the working fluid type has the greatest impact on the thermal resistance, followed by the filling ratio, while the condenser length has the least effect.For the maximum temperature difference on the evaporator surface of the uniform temperature plate, the filling ratio has the largest influence, followed by the condenser length, while the working fluid type has the smallest impact. By combining the analysis, the optimal combination for the model is determined, with a thermal resistance value of 0.175 K/W and the maximum temperature difference on the evaporator surface of 1.2 K, demonstrating the best heat transfer performance.