In a fuel filtering device for a fuel pump (6) which is arranged in a liquid fuel tank (1) of vehicles and feeds the liquid fuel to an engine, there is provided a screen (17, 23) which is for filtering the liquid fuel (2) and is constituted as a bag with a bottom part thereof disposed in contact with or close to an inside wall of the bottom of the fuel tank and covers a suction opening (16) of a suction tube (15) and at least a part of the suction tube (15), the screen (17, 23) being constructed with a dense web which forms a substantially air-tight liquid film by soaking the liquid fuel (2) which makes contact with at least the bottom part of the screen (17, 23) when the screen is partially immersed in the liquid fuel (2).