Physical and mechanical properties of concrete on the one hand and ease of its production of on the other hand, has made the concrete to the most widely used building materials industry; the tensile strength of concrete is very low. strengthening and improving Besides properties of concrete is one of the most important things that has been the interest of scientific communities. One of the new materials that has been allocated special place in Strength concrete is glass fiber. In fact, Glass Fiber Reinforced Concrete (GFRC) is a composite that by using of glass fiber resistant to alkaline environments in the concrete mixture, their flexural and tensile strengths will be increased. High ductility, strength and resistance to cracking are the other properties of this concrete. In this research, the effect of Microsilica, Metakaolin and Nanosilica on the durability of glass fiber reinforced subjected to the freeze and thaw cycles was investigated. The amount of Microsilica was considered 10% and 15%, Nanosilica 0.75% and 1.5% and Metakaolin 10% and 15% by weight of cement. The samples were made by two methods of premix and spray. In the production of premixed samples, the fiber content was 1.5 and 2.5 percent by volumetric weight of (GFRC) and in the production of spray samples, the amount of fibers was considered 4 and 6 percent by volumetric weight of (GFRC). After construction and curing of the samples, in accordance with code ASTM C666-B, they have been subjected to the freeze and thaw Cycles. For comparing the performance of the mix designs under the freeze and thaw cycles, Compressive strength tests, Flexural Toughness and Flexural strength tests and study of length and weight changes after ending of freeze and thaw Cycles were performed. Also the content of water absorption was studied as other effective parameter on glass fiber reinforced concrete durability. The results showed that adding glass fiber to concrete lead to a low increase on compressive strength and increase significantly the modulus of rupture and ductility; Also the addition of pozzolanic materials including metakaolin and microsilica in all mixes and also nanosilica with the rate of 0.75 percent to samples with glass fiber, cause to increase the compressive strength, modulus of rupture and ductility of samples after 28 days and 150 and 300 freeze and thaw cycles; But with increasing the amount of nanosilica from 0.75% to 1.5%, compressive strength, modulus of rupture and ductility of samples decrease at all ages of tests. The addition of glass fiber and pozzolanic materials including metakaolin and microsilica in all mixes and also nanosilica with 0.75 percent, reduces compressive and flexural strengths drop after freeze and thaw cycles. According to the obtained results of water absorption, it was found that adding glass fiber to concrete increases the water absorption; But adding metakaolin and nanosilica and specially microsilica reduces significantly the amount of water absorption of fiber samples. Key Words: Glass Fiber Reinforced Concrete, Fiber Reinforced Concrete, Glass Fiber, GFRC, Mechanical Properties, Durability.