As you can see in growing population countries were demand of high rise building is drastically increasing, due to which different types of structural frame system have to look for economically, structural stability and aesthetically aspects. These different structural system such as conventional, braced tube, outrigger, diagrid are most commonly used for high rise buildings, among them Diagrid System are new trends for high rise buildings due to its Structural and aesthetical properties. Diagrid systems consists of diagonal columns instead of vertical columns (Vertical columns are deleted in this frame system). Diagrid systems are diagonally connected due to which there is reduction in lateral loads and some portion of gravity load also as compared to other structural system. Diagrid used in different angels depends upon the height of the structure which is useful in reducing the forces. In early days architectural view of the high rise buildings are very important, due to the different angels of diagrid with respect to height the combination gives better architectural view than the Conventional and braced system. At the start of the construction of high rise building only conventional frame system is used for construction later braced tube or braced frame system is adopted in which both vertical column as well as diagrid members are used for construction later and recently Diagrid frame system were highly used it is some were similar to braced tube system, only the vertical columns are deleted. So in this thesis I am studying why diagrid frame system are more adopted nowadays instead of other structural system such as Conventional frame and braced frame system. A rectangular plan of size 15 m × 18 m and 20 story consist of 3m floor to floor of RCC building is considered for analysis with same parameter and same loadings for all buildings. The software used for analysis and various data collections of all building for comparison is Staad Pro. IS 456:2000 are used for designing of all structural members and load combinations of seismic forces are considered as per IS 1893(Part 1): 2002. After analysis of all the buildings with same data the comparison is done by comparing the beam forces, column forces, lateral displacement, story drift, reinforcement in column, beam and footings etc. Most of the lateral load are resist by external diagonal columns at periphery of the building which gives less effect of lateral loading to the internal column. This causes reduction in the forces and reinforcement in diagrid building as compared to conventional & braced structure. As also there is less effect of lateral loading there is less displacement and story drift in diagrid building as compared to other buildings.