From the relationship between street and street-side interface,the paper has a discussion on the significance of the continuity of street interface both in the formal beauty of the continuity and security requirements,and puts forward the specific indicators and methods to controlling the continuity of the street-side interface such as building height along the street,the rate of building affixed to the street line,aspect ratio of the building and building roof contour.Finally,with the successful case of controlling of patterns on streetside of the interface in the urban design of the 22 and 23-1 blocks of the Shenzhen central district by SOM,the paper illustrates the feasibility of the elements and countermeasures in the controlling on continuity of the street-side interface,and provides reference for specific urban planning management.