The invention relates to a foundation bolt group integrated assembly installation mold. A foundation bolt is provided with a screw thread section, a rectangular frame, an upper-layer template and a combined template are included, the combined template comprises a middle-layer template, a ribbed plate and a lower-layer template, the ribbed plate is vertically connected between the middle-layer template and the lower-layer template to enable the middle-layer template to be parallel to the lower-layer template, a plurality of corresponding locating holes are formed in the upper-layer template, the middle-layer template and the lower-layer template according to the design position of a foundation bolt, the diameter of the locating holes is larger than the outer diameter of the screw thread section of the foundation bolt by 0.5 mm, and the combined template is fixed to the frame according to the height of the screw thread section of the foundation bolt. According to the foundation bolt group integrated assembly installation mold, an integrated control assembly installation process is adopted, a foundation bolt group is pre-located, the cumbersome verticality control process is simplified, the construction speed is increased, the time cost input is reduced, favorable conditions are created for precise installation of a subsequent steel structure, the construction efficiency is improved, and the construction cost is saved.