Tetragonal phase SrWO4:Eu3+ nanocrystals were synthesized by a solventhermal method.The nanocrystals were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM).The results indicated that the phase compositions, morphologies and sizes, and luminescence properties of SrWO4:Eu3+ are related to the initial reactant content and reaction time, and lower initial reactant content is benefit for the formation of the string SrWO4:Eu3+ nanobeans.The luminescence of SrWO4:Eu3+ was also studied.