An organic electroluminescent device comprising organic layers comprising at least a hole-transporting layer and a light-emitting layer sandwiched between an anode and a cathode wherein the light-emitting layer contains a fluorescent light-emitting material and an electron- and/or exciton-blocking layer containing an indolocarbazole compound represented by general formula is disposed between the hole-transporting layer and the light-emitting layer so as to be adjacent to the light-emitting layer, wherein a hole-injecting layer is provided: Z(̵Y) n wherein in general formula, Z is an n-valent aromatic hydrocarbon group of 6 to 50 carbon atoms or an n-valent aromatic heterocyclic group of 3 to 50 carbon atoms; Y is a group represented by formula; n is an integer of 1 to 6; Y's may be identical with or different from each other when n is 2 or more, wherein in formula (la), ring A is an aromatic or heterocyclic ring fused to the adjacent rings and represented by formula and ring B is a heterocyclic ring fused to the adjacent rings and represented by formula; each of R 1 and R 2 is independently a hydrogen atom, an aliphatic hydrocarbon group of 1 to 10 carbon atoms, an aromatic hydrocarbon group of 6 to 12 carbon atoms, or an aromatic heterocyclic group of 3 to 11 carbon atoms, wherein in formula, X is a methine group or a nitrogen atom; R 3 is a hydrogen atom, an aliphatic hydrocarbon group of 1 to 10 carbon atoms, an aromatic hydrocarbon group of 6 to 12 carbon atoms, or an aromatic heterocyclic group of 3 to 11 carbon atoms; R 3 may be fused to a ring containing X to form a fused ring, wherein in formula, Ar is an aromatic hydrocarbon group of 6 to 50 carbon atoms or an aromatic heterocyclic group of 3 to 50 carbon atoms wherein the light-emitting layer contains a fluorescent light-emitting material and an electron-transporting host material, wherein the LUMO energy of the indolocarbazole compound contained in the electron- and/or exciton-blocking layer is higher than the LUMO energy of the electron-transporting host compound contained in the light-emitting layer; and wherein the HOMO energy of the hole-transporting material contained in the hole-transporting layer is higher than the HOMO energy of the indolocarbazole compound represented by general formula; and wherein the hole-transporting layer is provided adjacent to the anode or the hole-injecting layer. wherein in general formula, Z is an n-valent aromatic hydrocarbon group of 6 to 50 carbon atoms or an n-valent aromatic heterocyclic group of 3 to 50 carbon atoms; Y is a group represented by formula; n is an integer of 1 to 6; Y's may be identical with or different from each other when n is 2 or more, wherein in formula (la), ring A is an aromatic or heterocyclic ring fused to the adjacent rings and represented by formula and ring B is a heterocyclic ring fused to the adjacent rings and represented by formula; each of R 1 and R 2 is independently a hydrogen atom, an aliphatic hydrocarbon group of 1 to 10 carbon atoms, an aromatic hydrocarbon group of 6 to 12 carbon atoms, or an aromatic heterocyclic group of 3 to 11 carbon atoms, wherein in formula, X is a methine group or a nitrogen atom; R 3 is a hydrogen atom, an aliphatic hydrocarbon group of 1 to 10 carbon atoms, an aromatic hydrocarbon group of 6 to 12 carbon atoms, or an aromatic heterocyclic group of 3 to 11 carbon atoms; R 3 may be fused to a ring containing X to form a fused ring, wherein in formula, Ar is an aromatic hydrocarbon group of 6 to 50 carbon atoms or an aromatic heterocyclic group of 3 to 50 carbon atoms wherein the light-emitting layer contains a fluorescent light-emitting material and an electron-transporting host material, wherein the LUMO energy of the indolocarbazole compound contained in the electron- and/or exciton-blocking layer is higher than the LUMO energy of the electron-transporting host compound contained in the light-emitting layer; and wherein the HOMO energy of the hole-transporting material contained in the hole-transporting layer is higher than the HOMO energy of the indolocarbazole compound represented by general formula; and wherein the hole-transporting layer is provided adjacent to the anode or the hole-injecting layer.