A sintered porous material with stronger corrosion resistance comprising three elements Ti, Si and C which constitute at least 90% of the weight of the porous material, wherein the porous material has 30-60% porosity, 0.5-50 μm average pore size, and at least 23 MPa tensile strength, wherein the porous material of 5 mm thickness under 0.05 MPa pressure has a pure water filtration flux of at least 1 t/m2·h, and a weight loss rate of no more than 1.5% after having been immersed in a 5 wt % hydrochloric acid solution at room temperature for 48 days.