Abstarct: Concrete structures reinforced with steel rebar are widely used in various constructions due to their high strength and durability. However, these structures face the challenge of steel rebar corrosion in corrosive environments, such as regions with high humidity, extreme temperature variations, and the presence of chlorides. Rebar corrosion not only reduces structural strength but also increases maintenance costs. To address this issue, Fiber Reinforced Polymer (FRP) rebars have been proposed as an alternative to steel due to their high corrosion resistance, low weight, non-conductivity, and significant durability. However, FRP rebars, due to their inherent brittleness and low ductility, present challenges in structural performance. To mitigate this issue and enhance the ductility of FRP-reinforced beams, the use of concrete yielding blocks has been introduced as an effective solution. Yielding concrete blocks, placed in the compression zone of the beam and appropriately perforated and confined, can improve the behavior and ductility of FRP-reinforced concrete beams through their high ductility. The inclusion of these blocks in the plastic hinge region of the beam results in notable changes in the beam's behavior, such as altering failure modes and reducing stiffness in the load-displacement curve. This research aims to investigate and improve the ductility of FRP-reinforced concrete beams. In this study, the numerical behavior and ductility of FRP-reinforced beams equipped with compressive yielding blocks were examined using ABAQUS software. A finite element model was developed in ABAQUS and validated against the results from five experimental samples. The finite element model effectively predicted the load-displacement behavior of the beams, with a maximum difference of 4.55% between the numerical and experimental ultimate loads. An analytical model was also coded to predict the ultimate load of the beam, showing a deviation of 2.86%. Subsequently, a parametric study was conducted to evaluate the effects of various factors on beam ductility, analyzing the behavior and ductility of 24 beams across four groups. Beam ductility was quantified using Jeong and Naaman’s energy-baxsed methods and Park's displacement-baxsed method. Additionally, the crack patterns and rupture status of CFRP sheets were assessed. The parametric study indicated that block height had the greatest impact on beam behavior, resulting in maximum ductility. The findings of this study demonstrate that the developed finite element model accurately predicts the load-displacement behavior of FRP-reinforced concrete beams equipped with ductile concrete blocks. Moreover, it was found that increasing the height and length of the blocks significantly enhances beam ductility. Using ductile concrete blocks may be considered an effective strategy for improving structural performance and increasing the ductility of FRP-reinforced concrete beams.