The porous titanium (Ti) sheets as filter elements exhibit a great demand in the field of hydrometallurgy process, chloralkail industry, water treatment, pharmaceutical industry, etc. For the powderrolled porous Ti sheets, systematical studies had been carried out on rolling, sintering process and properties of porous Ti sheets. In this work, porous Ti sheets with the width of 420 mm, different thicknesses and uniform microstructure were fabricated by powder rolling combining with vacuum sintering. The effect of powder properties on the performance of powderrolled porous Ti sheets, including porosity, maximum pore size, gas permeability, had been investigated. The results indicate that with the decrease of powder size, the density of porous Ti sheet increases, while its porosity, maximum pore size and gas permeability decrease. Moreover, the variation rule of maximum pore size and gas permeability to porous Ti steel is similar to that of molded porous materials. Therefore, in order to obtain the maximum porosity, porous Ti sheets should be rolled with the minimum rolling force. At that time, the coarser powders are, the thicker porous Ti sheets are. With the same powder size, the internal pore path of porous Ti sheet became longer and more complicated via its thickness increasing. It makes more energy consumed by gas passing through the pore structure, finally resulting in poor gas permeability of porous Ti sheet.