Abstract
The method of reserch about human behaivior in the liviing life has chiefly depent upon "Living style", that is, the comprehension between the object of behaivior and the function of space. But however, it has not necessarily paid attention to reserch the special patten of behaivior, through which the function really appears. Nowadays it becomes more difficult to classiby the behaiviors according to their objects on account of their complicated characters. The question is to make clear what is key point adjusting numerous behaiviors in the living life. We find it out that, "Danran", Fire Round Sitting should be the key behaivior in future. A summary is as follows. 1) "Danran" is one of the joious coumunication between one family. 2) It's communication corresponds to a group of behaivior, which are dinner, TV, conversation etc. 3) The communication between one family appears to the privacy for other human group. Privacy is an another side of conmunication. 4) The pattern of conmunication and privacy changes to different pattern according to the growth of family.