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SrAl2O4: Tb3+ phosphors doped with different concentration of Tb were synthesized by the solution combustion method. The crystalline structure, morphology and luminescent properties of the phosphors were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectroscopy respectively. The XRD analysis reveals a polycrystalline monoclinic structure and the calculated average particle sizes ranged between 80 and 90 nm. SEM images show non uniform and irregular shape particles. The Tb3+ doped SrAl2O4 phosphor showed green emission when illuminated with an excitation wavelength of 229 nm. The emission spectra also show weak blue emission in the region of 415—459 nm and strong green emission in the 489—622 nm range. The 4f—4f emission from 5D4 to 7FJ (J= 6, 5, 4, 3) states of Tb3+ were found at 489, 543, 585 and 622 nm, respectively. Other emission peaks from the 5D3 to 7FJ (J= 5, 4, and 3) transitions (blue) were also found at 415, 436 and 459 nm. The decay curves of SrAl2O4: Tb3+ phosphor showed rapid decay followed by a long afterglow. The intensity of the phosphorescent decreased with an increase in the concentration of the Tb ions in the host lattice.