Abstract: Lifeworld is such a world that all the common people can understand it directly without any theoretical instruction, which is also the integration of all the material world, the spiritual world and the cultural world. Until now, the academie circle faces the plight of the research of lifeworld, that is to say, the research of lifeworld has fallen into a teratology which is just like the academie way of scholasticism. If the philosophical research on the lifeworld really wants to "return to the lifeworld", the academie circle must try to find its way out of the plight of lifeworld research , that is to be on the way by practical return.