The invention provides a shear wall inner plate reinforcing steel bar reserved anchoring construction method. The method sequentially includes the steps of cutting out an embedded reinforcing steel bar with an anchoring section and an exposed section, embedding the anchoring section to a reinforcing steel bar shear wall, covering the exposed section with an isolation strip, fixing the exposed section and the isolation strip, conducting die assembly, conducting pouring to form the reinforcing steel bar shear wall, removing the isolation strip, and installing the horizontal structure through the exposed section. The shear wall inner plate reinforcing steel bar reserved anchoring construction method solves the problem of conducting pouring to form vertical structures such as shearing walls and columns and horizontal structures such as floors and connecting the vertical structures with the horizontal structures in a butt joint mode, and the requirement for integrity and strength of the structure are further improved.