Comparing various examples from different countries, the author analyses the relationship between the residential-street-building, the road and the transitional space, defines components of the transitional space which are selected from the residential street and derives it s possible forms.

Reading the integrative design of transition space in Tianyin piazza of Nanjing Jiangning;

Today, when we return our attention to the transition space of residential area, we don t consider it only a space for transition, but a place full of interest for residents.

Started from the concept and function of transitional space,this paper analyzed the present situations and existing types of transitional space in landscape architeature on transitional space of garden,summarized severd typical expression forms to consummate the garden space system,and to promote the improvement and consummation of the designing method.

Therefore,his artistic realm can be observed from three perspectives,or be called three spaces,namely,realistic space,transitional space and idealistic space so that his spirit of inquiry can be perceived and the richness of modern meanings can be better understood.