Teahouse is full of contradiction and cracks because of Lao She’s culture sense from Qi people. This kind of culture is the cultural complex of Man Nation. In order to interpret Teahouse deeply, understanding Lao She who came from Qi Nation is important. This paper tries to sort out all the Teahouse’s research that was started since 1950s from a academic aspect, raise some doubts about its former conclusion, and interpret deep structure of this masterpiece from a different aspect.