Nanoparticles of CuCr2O4 and Fe substituted CuCr2O4 are synthesized using the sol-gel technique and characterized using XRD Raman and FeSEM to determine their structure and particle size. The XRD findings of CuCr2-xFexO4 showed the tetragonal phase for x = 0.0 and the cubic phase for the remaining compounds (x = 0.5,1.0 &1.5). With Fe substitution, the average crystalline size rose. At ambient temperature, the Raman spectra of the series' parent compounds and Fe-doped compounds were recorded. Raman modes for the compounds have been found, with one of the modes, A1g, shifting to a lower wavenumber owing to Fe substitution. When Fe was substituted, the energy band gap widened. With the use of FeSEM, particle shape was modified from irregular to regular (rectangular) for Fe replacement. The magnetic state and oxidation state of Fe in compounds was identified from the Mossbauer spectroscopy at room temepature. The magnetic data indicate that as Fe substitutes at the Cr site, the magnetic transition shifts to high temperature, from 122 K to 300 K. The saturation magnetization was raised, as well as the change of hard to soft magnetic nature for Fe replacement at the Cr site, which may be used for microwave frequency applications.