The invention provides a course TiCl4 filtering method, using TiAl intermetalic compound tubular filter membrane as filtering component, and the filtering course mainly comprises two steps of course TiCl4 filtering and regularly stripping, controlling the pressure range of course TiCl4 filtering at 0.10-0.20MPa, filtering course TiCl4 liquid flow through a filtering device with the TiAl intermetalic compound filter membrane so as to obtain high-grade filtrate, , stopping filtering after 30-90 min, stripping with stripping agent to remove suspended solid accumulated on the membrane, discharging the obtained entrapped matters into a densifier for settlement separation and after the stripping ends, resuming filtering, where the stripping pressure is higher than the filtering pressure and the stripping time is 5-30 s, the stripping can use TiCl4 filtrate as stripping agent, dry air, nitrogen gas, or argon gas as stripping agent, and the gas-liquid mixture of TiCl4 filtrate and dry air (nitrogen gas, or argon gas) as stripping agent.