The invention discloses an assembled-type steel-concrete frame shear wall building system. The system comprises shear walls, girders, columns, a floor slab, an internal partition wall and an outer wall which are connected according to a frame shear wall structure, wherein the outer wall is an assembled-type self-locking connected internally cast outer wall having a rectangular wall window W; each girder is a U-shaped composite girder; the columns are steel-concrete columns; the shear wall is a steel plate shear wall; the floor slab is a fully precast floor slab B10, wherein each steel girder is preferably a U-shaped composite girder L10. According to the system disclosed by the invention, the assembly rate of the frame shear wall building system can be improved, and the maximum assembly rate can reach 90 percent or over 90 percent; in addition, members of a steel-concrete structure are adopted to form the frame shear wall building system, such that the weight of the structure can be effectively reduced, the basic load and the seismic force of the structure are reduced, and the cost of the structure is effectively decreased. The system disclosed by the invention has the advantages of high assembly rate, fast construction speed, short construction cycle and low cost.