Bond slip failure in fiber-reinforced concrete (FRC) is a critical issue that compromises structural performance. This study presents a non-destructive method for identifying bond slip failure of dog bone-shaped polypropylene fiber (PPF) and steel fiber (SF) concrete specimens with varying fiber dosages of 1, 1.5, and 2% of volume using piezo sensors. The PPF and SF concrete specimens are subjected to a controlled rate of loading under displacement control using a universal tensile testing machine. The electro-mechanical impedance (EMI) technique is employed to acquire data from the piezo sensors. Additionally, root mean square deviation (RMSD) method is used to quantify the progression of bond slip damage from the EMI data. The experimental results have shown a significant reduction in bond slip, with a load increase of 63.58% for 1.5% SF and 107.24% for 2% SF compared to the 1% SF dosage. For PPF, there is a substantial load increase of 54% for 1.5% and 18.40% for 2% compared to the 1% PPF dosage. This highlights the critical need for optimizing fiber dosages, and potentially incorporating hybrid fibers, to enhance structural performance and achieve more consistent improvements in bond slip reduction. The study concludes that piezo sensors are effective in providing early detection and continuous monitoring of bond slip failure in FRC, thereby contributing to improved structural performance.