Abstract—Using simple method to synthesize well-shaped and uniform Hexagonal-NaYF4 is a challenge to modern nano/micro technology. Through a hydrothermal chemical conversion route, a kind of uniform NaYF4:Eu Nanorods have been synthesized. The crystal structure, morphology, and luminescence properties were characterized by XRD, FE-SEM, and PL, respectively. The results show that the nanorods have high purity, high crystallinity and high luminescence intensity.