The photoluminescence properties of monoclinic BaMg 2 Si 2 O 7 :Eu 2+ ,Mn 2+ were studied for red emitting persistent luminescence application. With UV excitation at 300nm, wide band emission of Eu 2+ resulting from the 4f 6 5d 1 →4f 7 transition was observed at 400nm. The emission of Mn 2+ due to the 4 T 1 ( 4 G)→ 6 A 1 ( 6 S) transition moved from 625 to 670nm with increasing Mn 2+ content because of the appearance of Mn 2+ –Mn 2+ pairs. Both emissions were observed with 300nm excitation. The decay time measurements suggest high energy transfer probability from Eu 2+ to Mn 2+ . The strongest red emission was obtained with 5 and 20mol% doping of Eu 2+ and Mn 2+ , respectively. The decay time of the Mn 2+ emission drastically decreased with higher Mn 2+ concentrations. The Eu 2+ and Mn 2+ co-doped materials showed only short and weak persistent luminescence.