A dibenzothiophene-based compound represented by the following Formula 1: Wherein L 1 is a divalent arylene group having 6 to 40 carbon atoms; or a fluorenylene group substituted with an alkyl group, R 1 is hydrogen; an alkyl group having 1 to 20 carbon atoms; an alkoxy group having 1 to 20 carbon atoms; or an aryl group having 6 to 12 carbon atoms, which is unsubstituted or substituted with an alkyl group having 1 to 20 carbon atoms or an alkoxy group having 1 to 20 carbon atoms, R 2 and R 3 are the same as each other, and are each an aryl group having 10 to 16 ring-membered carbon atoms, which is unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; a carbazole group unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; a thiophenyl group unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; or a heterocyclic group including one or more of N, S and O atoms and having 5 to 12 ring-membered carbon atoms, which is unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group, R 4 is hydrogen; an alkyl group having 1 to 20 carbon atoms; or an alkoxy group having 1 to 20 carbon atoms, and may form an aliphatic, aromatic or hetero condensed ring with an adjacent group, and n means the number of substituents and is an integer of 1 to 6. Wherein L 1 is a divalent arylene group having 6 to 40 carbon atoms; or a fluorenylene group substituted with an alkyl group, R 1 is hydrogen; an alkyl group having 1 to 20 carbon atoms; an alkoxy group having 1 to 20 carbon atoms; or an aryl group having 6 to 12 carbon atoms, which is unsubstituted or substituted with an alkyl group having 1 to 20 carbon atoms or an alkoxy group having 1 to 20 carbon atoms, R 2 and R 3 are the same as each other, and are each an aryl group having 10 to 16 ring-membered carbon atoms, which is unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; a carbazole group unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; a thiophenyl group unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group; or a heterocyclic group including one or more of N, S and O atoms and having 5 to 12 ring-membered carbon atoms, which is unsubstituted or substituted with one or more substituents selected from the group consisting of an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a fluorenyl group, a carbazole group, a nitrile group, a thiophene group unsubstituted or substituted with a phenyl group, a benzothiophene group and a nitro group, R 4 is hydrogen; an alkyl group having 1 to 20 carbon atoms; or an alkoxy group having 1 to 20 carbon atoms, and may form an aliphatic, aromatic or hetero condensed ring with an adjacent group, and n means the number of substituents and is an integer of 1 to 6.