In recent decades, the application of fiber-reinforced polymers (FRP) composites in strengthening structural members has increased due to their low weight, high strength, and easy implementation. However, one of the main weaknesses of these materials is that as the temperature rises, the resin resistance and, consequently, the bond strength between the FRP and concrete member rapidly diminish. This causes the FRP to separate from the concrete substrate and prematurely fail the member. Therefore, previous studies have widely suggested fire protection materials to mitigate this weakness. However, it increases costs and exacerbates architectural problems. To eliminate the need for fire protection systems or reduce their thickness, this paper evaluates the combined effect of using FRP mechanical anchors and utilizing the EBROG Grooving method on reinforced concrete beams for flexural strengthening FRP. A total of six rectangular control beams were tested under flexural loads at ambient temperature, and four beams were examined under simultaneous flexural loading and fire conditions. The proposed anchorage system included two-layer wrapped CFRP strips along the beam axis at specified intervals and fan anchorage with holes with 120 mm spacing. To assess the effectiveness of the proposed anchorage systems and determine the maximum capacity of the beams, they were first examined at ambient temperatures. The results showed that under standard fire conditions, due to the formation of a tangential cable mechanism, RC beams strengthened with one and two layers of flexural CFRP and anchored with two-layer wrapped CFRP strips withstood constant loads of 7,85 KN and 9.8 KN for 77 and 66 min, respectively. Also, the RC beam resisted fire for up to 106 min under the applied load.