<p>In this paper, we completely investigate plasma parameters of a CdO@ZnO target using Laser-Induced Breakdown Spectroscopy (LIBS). The plasma spectra of CdO@ZnO were observed after preparation using pulsed laser with energies of (300, 500 and 700) mJ. The experiment used a high-power laser to ablate the Zn target, generating a plasma plume that emitted characteristic spectral lines. An X-ray revealed that ZnO nanoparticles had a hexagonal structure phase and were polycrystalline. We extracted valuable information about the plasma parameters by analysing the emitted light, including electron temperature, electron density, and ionization degrees. The LIBS setup was carefully calibrated and optimized to ensure accurate and reliable measurements. The evaluation of electron density was achieved by employing Stark broadening analysis, plasma density, and plasma frequency. Additionally, it is worth noting that the Debye length decreases as energy increases. The electron temperature values were found to range (0.508–0.609) eV. While the electron density ranged from (8.182–9.697) × 10¹⁷&#xa0;cm⁻³. The remaining plasma properties were determined by the utilization of mathematical formulae and the Boltzmann plot approach.</p>