Three-dimensional(3D) flowerlike hierarchical Zn2GeO4 and Mn2+-doped Zn2GeO4 microstructures have been prepared by a facile hydrothermal approach.X-Ray diffraction(XRD),field emission scanning electron microscopy(FESEM),transmission electron microscopy(TEM) and photoluminescence(PL) spectrometry were employed to characterize the samples.Such flowerlike hierarchical Zn2GeO4 microstructures with an average diameter of 3-4 μm were found to be constructed by abundant single crystalline nanorods of about 90 nm in diameter.The luminescent properties of Zn2GeO4:xMn phosphors with different contents of Mn2+ as an activator were investigated.The Mn2+-doped samples showed green luminescence corresponding to the d-d transition of Mn2+ under the irradiation of UV light.The red shift(from 531 nm to 538 nm) in λem with increasing Mn2+ content was observed in the luminescent spectra,which should be attributed to a weak crystal field because of the substitution of Zn2+ by Mn2+ at a distorted tetrahedral lattice site.