This article presents a novel family of intelligent piezoelectric composite structures. Unlike conventional self-sensing composites limited to passive monitoring and constrained by low actuation capacity, this study puts forward a novel structure-actuator-sensor integration that combines with Electro-Mechanical Impedance Spectroscopy (EMIS) active sensing, while preserving its mechanical performances. The structure is formed by distributing Pb(Zr_0.52Ti_0.48)O₃ piezo powder and epoxy as the active component to impregnate glass fibers, enabling every inch of the material to function as both an actuator and a sensor. To develop an insight into the EMIS method combined with piezoelectric composites, coupled-field Finite Element (FE) models are constructed for verifying the feasibility of the EMIS for damage detection. A Root Mean Square Deviation (RMSD) damage metric is subsequently utilized to determine the position of the structural damage. It is found that RMSD metric indicates substantial deviations in the impedance spectrum near the damage site, while spectrums at distant locations show minimal change, rendering a high resolution spatial diagnostic capability. Furthermore, piezoelectric composite plate specimens are crafted to achieve high degree of sensitivity and reliability through material parameter optimization and process refinement. A series of mechanical performance comparative experiments are conducted to verify the load-bearing competency of the composites. Finally, experimental validation is performed, demonstrating the performance of the EMIS active sensing for the damage localization in the proposed composite structures. The composite system possesses the prowess for achieving self-awareness through such actuator-sensor-structure integration, which could be potentially utilized in the next generation of wing and fuselage structures in aviation industry, high pressure vessels for hydrogen storage, and smart composite pipelines for transporting gas and petroleum. The paper finishes with summary, concluding remarks, and future work.