At presently, manganese oxide nanoparticles (MnO2 NPs) have intrigued material science researches XRD widely owing to its extensive variety of applications. In view of the study, the manganeseoxide nanomaterials were prepared via using manganese chloride Tetra hydrates salts. This samples were considered to novelty the structural, functional andmagnetic properties by XRD, VSM, HR-SEM and EDAXcorrespondingly. An attempt is finishedtowardreview thecomplete field dependent magnetization study of the synthesized material is presented. Structural studies by XRDindicate that the synthesized material as tetragonal crystal structure. The Antiferro magnetic behavior was detected at room temperature with no saturation magnetization and hysteresis in the region of measured field strength. These dimensions as a role of temperature and field strength showed a reduction in Anferromagnetic temperature.The HR SEM images revealed typical twodimensional layer sheet-like morphologies with multiple folds for non-intercalated MnO2 whileinterpolated MnO2 presentedfurther flattered and planar shaped. The EDAX spectrum confirmed the presence of manganese oxide