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Disclosed are a red light-emitting nitride material, a light-emitting part and a light-emitting device comprising the same. The General Formula of the light-emitting material is : M a (Al, B) b Si c N d O e : Eu m , R n , wherein M is at least one of the alkaline earth metal elements Mg, Ca, Sr, Ba and Zn; R is at least one of the rare earth elements Y, La, Ce, Gd and Lu; and 0.9‰¤a<1.1, 0.9‰¤b‰¤1, 1‰¤c‰¤1.5, 2.5
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