Abstract: In this paper, the traditional applications of rare earth such as stabilizers, catalyzers, accelerants, coupling agents, and pigments as well as the functional applications such as magnetic agents, antimicrobial agents, fire retardants, and light energy converters in the polymeric materials were introduced. An outlook was given on the future application of rare earths in the polymeric materials.

Key words: functional application, traditional application, rare earths, polymeric materials, outlook