Abstract: The resistance characteristics of steam-water two-phase flow in non-heat generating porous media were experimentally studied and 158 sets of data were achieved. The particles-steam drag, particles-water drag and the steam-water interfacial drag were analyzed and the corresponding semi-theoretical models were established. The correlations of the void fraction and the interface force were also concluded. The experimental results were analyzed synthetically to study hydraulic and porous media geometrical parameters influence on the resistance characteristics of two-phase flow and a correlation was concluded to predict the flow resistance. The comparison between different correlations and experimental results indicates that the correlation achieved in this paper is the best one to predict the flow resistance of steam-water two-phase flow through the porous media. The results of this study provide experimental and theoretical basis for further research on the resistance and heat transfer characteristics of steam-water two-phase flow in porous media with internal heat source.