Li+ ions have been successfully doped into the La sites of (La0.95Eu0.05)(2)Ti2O7 nanocrystals through a facile citric acid sol-gel method. The doping concentration of Li+ ions can be as high as 15 mol%. Photoluminescence (PL) performances of the obtained samples have been investigated. The results showed that a doping with small number of Li+ ions improves the PL intensity of the synthesized La2Ti2O7:Eu3+ nanophosphors. The highest emission intensity was observed using the formula of (La0.92Eu0.05Li0.03)(2)Ti2O7, whose brightness was increased by almost 20% in comparison with that of (La0.95Eu0.05)(2)Ti2O7.