Lithium-based ferrites are promising attractive and potential magnetic materials for many applications in technology. The influence of zinc substitution as well as the annealing temperature on phase formation, microstructure and magnetic characterizations of Li-ferrite were explored. The compositions were synthesized using the citrate method. The achieved ashes were annealed at three various temperatures 600, 800 and 1000
C. The XRD analysis designated that the structure of as-prepared nanoparticles was promoted with the annealing. The surface examination of the as-prepared ashes showed that most of the particles are spherical in shape besides some agglomerated particles.