In the direction of sustainable development and Reduction of greenhouse gases caused by Portland cement production, scientists have introduced various alternatives to traditional Portland cement, including Geopolymers and Ferrock, which is made from recycled materials and is carbon-negative, meaning it absorbs carbon dioxide. As a result, it is considered an environmentally friendly material. Additionally, incorporating Fibers into concrete can enhance its compressive, tensile, and erosion resistance. This study conducted experiments by adding Ferrock materials in amounts ranging from 10% to 40% to a slag-based geopolymer, using glass and polypropylene Fibers to determine the optimal mix. The results indicated that the compressive strength of samples containing Ferrock, and hybrid Fibers increased by 26.6% over time compared to samples without Fibers. It was also concluded that Glass Fibers exhibit 84.6% greater impact load strength than polypropylene Fibers at 0.5 percent and have a 23.1% higher flexural strength in comparison to hybrid Fiber samples. In this study, searches were carried out by adding Ferrock from 10 to 40 percent to slag-based geopolymer with glass and polypropylene fibers to find an optimal mix. Results show that the compressive strength of samples that include Ferrock and hybrid fibers increased by 26.6 percent over time in comparison to samples without fibers. It was also concluded that glass fibers have better strength against impact load than polypropylene fibers.