Under Cao Xueqin's delicate and ingenious writing style,in the Dream of the Red Chamber, Da Guan Yuan’s winding path leads to a secluded quiet place with mountains and rivers, bridges and corridors, pavilions,flowers,plants and trees, which contains rich humanistic and poetic connotations, making people aspire to it. Because there are many contradictions in the records of the Jia's mansion in lots of literary fictions,the writers also hold their own opinions that the debate about the prototype of Da Guan Yuan has always been a hot issue of Redology. Shui Xi Zhuang culture is an outstanding part of Tianjin culture, and the culture in connection with the Dream of the Red Chamber is no doubt a new highlight part of Shui Xi Zhuang culture. “The Prototype hypothesis of Da Guan Yuan”is a new research achievement of Tianjin Redology studies with certain persuasion and influence. This paper focuses on discussing and appraising, which is full of positive significance to deepening the extensive and profound specialized field —Redology and Jingu culture.