Lithium carbonate, aluminium oxide, silicon dioxide, europium(III) oxide were used as raw materials to prepare a series of Eu3+ ion-doped LiAlSiO4 red phosphor Li1-xAlSiO4+x:xEu3+(x=0.05~0.18) by a conven-tional high-temperature solid-phase method at 1150℃. The crystal structure, particle morphology and luminescence properties of Li1-xAlSiO4+x:xEu3+ were characterized by XRD, SEM and photoluminescence spectrum. The influence of amount of Eu3+doping on the luminescence intensity, color temperature and hue of the red phosphors was investigated. The results indicated that the sample was single host when the Eu3+ doping molar fraction was below 15.0%. The sample could be excited by the near-ultraviolet band of 350~420 nm, and the strongest excitation peak was located at 394 nm. The emission spectrum showed characteristic peaks of Eu3+, at 593 nm and 616 nm, corresponding to 5D0→7F1, 5D0→7F2 transitions, re-spectively. The optimal doping molar fraction of Eu3+ corresponding to the strongest emission of sample was 12.0%. The occurrence of concentration quenching was mainly due to the quadrupole -quadrupole (q-q) interaction. The CIE coordinate of this sample is (0.6464, 0.3526), thus, it can be a candidate of red phosphor for NUV excited LEDs.