SrAl2O4:Eu2+,Dy3+ phosphorescence ceramics samples were prepared by solid phase reaction at high temperature under reducing atmosphere through dry press processing. The sample shows high strength and good chemical durability. The samples emit bright green light after being excited by natural light. The effects of sintering temperatures on the microstructure and phosphorescent properties were stud?ied. XRD analysis indicates the SrAl204 ： Eu2+, Dy3+ ceramic is formed at 1250 ?1450℃ but the optimum sintering temperature was found to be 1400°C . SEM observation indicates that the sample shows tight mi?crostructure at 1400°C for 4h. Spectrum analysis indicates that the sample exhibits a broad emission peak?ing at 520nm and excitation spectrum consists of four peaks at 240nm, 320nm, 360nm and 420nm ranging from 240?480nm. The characteristics of the intensity decay is fitted by I = At -n equation, n=0.6 for the beginmg 5 minutes, n ニ 1.0 for 5?40minutes and w = 1.3 for 40?600minutes. The phosphorescence intensity is 2.15mcd/m2 even for IOh after removal of a 40W fluorescent lamp excitation source. This type of ceramic sample can find applications in war at night time.