This study reports the structural and magnetic properties of Manganese and Nickel nanoferrites were synthesized at various temperatures by a thermal treatment method. The characterization studies were conducted by Xray diffraction(XRD). Magnetic properties were demonstrated by a vibrating sample magnetometer (VSM), which displayed that the calcined samples exhibited different types of magnetic behavior, manganese ferrite nanoparticles showed a super-paramagnetic behavior for all samples and also Nickel ferrite nanoparticles showed that the calcined samples exhibited ferromagnetic behaviors.