Abstract: The analysis of structural lecto types for a comp ound system composed by beam, column and brace with less sections, which substit utes supporting wall in multi-story residence, is carried out. Internal forces of the system acted under vertical loads and wind loads are calculated by differ ent software. As a result, the structure system installed with brace has t he minimal internal force under vertical load, and its member bending moment and shear force accounts for from 1/20 to 1/60 of those of other kinds of modes. Bu t the internal forces have less difference among three kinds of braced structure s under horizontal load, it illustrates that three kinds of structural types hav e almost equal ability in resisting lateral pressure. Compared with frame struc ture, beam moment and column moment of the structural system with brace a c count for 1/50 and 1/25 of that of frame structure. Therefore, the system instal led with brace can be regarded as rather rational structural system among new compound structural systems.