A light emitting device comprising: a body including first and second side walls (11, 12) which correspond to each other, third and fourth side walls (13, 14) which have lengths shorter than lengths of the first and second side walls (11, 12), and a concave portion therein; a first lead frame under the concave portion and the third side wall; a second lead frame under the concave portion and the fourth side wall; a light emitting chip (71, 72) on at least one of the first and second lead frames (21, 31); a molding member on the concave portion; wherein the first lead frame includes a first cavity lower than a bottom of the concave portion and a first lead part protruding more than the third side wall, the second lead frame includes a second cavity lower than the bottom of the concave portion and a second lead part protruding more than the fourth side wall, and the light emitting chip includes a first light emitting chip disposed in the first cavity and a second light emitting chip disposed in the second cavity; characterized in that said body further comprises: a first recess portion recessed from the first side wall toward the second side wall and connected to a bottom of the body; a second recess portion recessed from the second side wall toward the first side wall and connected to the bottom of the body; a third recess portion spaced apart from the first recess portion under the first side wall of the body; and a fourth recess portion spaced apart from the second recess portion under the second side wall of the body, wherein the first and second recess portions (51, 53) are opposite to each other with respect to the first cavity, and the third and fourth recess portions (52, 54) are opposite to each other with respect to the second cavity; and a fifth recess portion connecting the first recess portion to the third recess portion under the first side wall and having a width larger than a width of the first or third recess portions (51, 52). a body including first and second side walls (11, 12) which correspond to each other, third and fourth side walls (13, 14) which have lengths shorter than lengths of the first and second side walls (11, 12), and a concave portion therein; a first lead frame under the concave portion and the third side wall; a second lead frame under the concave portion and the fourth side wall; a light emitting chip (71, 72) on at least one of the first and second lead frames (21, 31); a molding member on the concave portion; wherein the first lead frame includes a first cavity lower than a bottom of the concave portion and a first lead part protruding more than the third side wall, the second lead frame includes a second cavity lower than the bottom of the concave portion and a second lead part protruding more than the fourth side wall, and the light emitting chip includes a first light emitting chip disposed in the first cavity and a second light emitting chip disposed in the second cavity; characterized in that said body further comprises: a first recess portion recessed from the first side wall toward the second side wall and connected to a bottom of the body; a second recess portion recessed from the second side wall toward the first side wall and connected to the bottom of the body; a third recess portion spaced apart from the first recess portion under the first side wall of the body; and a fourth recess portion spaced apart from the second recess portion under the second side wall of the body, wherein the first and second recess portions (51, 53) are opposite to each other with respect to the first cavity, and the third and fourth recess portions (52, 54) are opposite to each other with respect to the second cavity; and a fifth recess portion connecting the first recess portion to the third recess portion under the first side wall and having a width larger than a width of the first or third recess portions (51, 52). a first recess portion recessed from the first side wall toward the second side wall and connected to a bottom of the body; a second recess portion recessed from the second side wall toward the first side wall and connected to the bottom of the body; a third recess portion spaced apart from the first recess portion under the first side wall of the body; and a fourth recess portion spaced apart from the second recess portion under the second side wall of the body, wherein the first and second recess portions (51, 53) are opposite to each other with respect to the first cavity, and the third and fourth recess portions (52, 54) are opposite to each other with respect to the second cavity; and a fifth recess portion connecting the first recess portion to the third recess portion under the first side wall and having a width larger than a width of the first or third recess portions (51, 52).