A polycyclic compound represented by the following Formula 1: in Formula 1, DU1 and DU2 are represented by the following Formula 2-1 or 2-2, and at least one of DU1 or DU2 is represented by the following Formula 2-1, AU is represented by the following Formula 3-1 or 3-2, and m is 1 or 2: in Formula 2-2, X 1 is N, or NR a, X2 is a direct linkage, CR b R c, or (CR d)=(CR e), and n is 1 to 2, in Formulae 2-1 and 2-2, Ar 1 to Ar 5 are each independently a hydrocarbon ring having 5 to 60 carbon atoms for forming a ring, or a heterocycle having 5 to 60 carbon atoms for forming a ring which comprises no nitrogen atom for forming a ring, and a to e are each independently an integer of 0 to 4, in Formula 3-1, R w is a cyano group, or a substituted or unsubstituted heterocycle having 2 to 60 carbon atoms for forming a ring which comprises at least one nitrogen atom for forming a ring, p is an integer of 1 to 3, and f is an integer of 0 to 3, in Formula 3-2, Y 1 is O, S, or SO 2, Y 2 is a direct linkage or CR f R g, and g and h are each independently an integer of 0 to 3, in Formulae 2-1, 2-2, 3-1, and 3-2, R 1 to R 8 and R a to R g are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, wherein substituted means substituted with at least one substituent selected from the group consisting of deuterium, halogen, cyano, nitro, amino, silyl, oxy, thio, sulfinyl, sulfonyl, carbonyl, boron, phosphine oxide, phosphine sulfide, alkyl, alkenyl, alkoxy, hydrocarbon ring, aryl and heteroaryl. DU1 and DU2 are represented by the following Formula 2-1 or 2-2, and at least one of DU1 or DU2 is represented by the following Formula 2-1, AU is represented by the following Formula 3-1 or 3-2, and m is 1 or 2: in Formula 2-2, X 1 is N, or NR a, X2 is a direct linkage, CR b R c, or (CR d)=(CR e), and n is 1 to 2, X 1 is N, or NR a, X2 is a direct linkage, CR b R c, or (CR d)=(CR e), and n is 1 to 2, in Formulae 2-1 and 2-2, Ar 1 to Ar 5 are each independently a hydrocarbon ring having 5 to 60 carbon atoms for forming a ring, or a heterocycle having 5 to 60 carbon atoms for forming a ring which comprises no nitrogen atom for forming a ring, and a to e are each independently an integer of 0 to 4, Ar 1 to Ar 5 are each independently a hydrocarbon ring having 5 to 60 carbon atoms for forming a ring, or a heterocycle having 5 to 60 carbon atoms for forming a ring which comprises no nitrogen atom for forming a ring, and a to e are each independently an integer of 0 to 4, in Formula 3-1, R w is a cyano group, or a substituted or unsubstituted heterocycle having 2 to 60 carbon atoms for forming a ring which comprises at least one nitrogen atom for forming a ring, p is an integer of 1 to 3, and f is an integer of 0 to 3, R w is a cyano group, or a substituted or unsubstituted heterocycle having 2 to 60 carbon atoms for forming a ring which comprises at least one nitrogen atom for forming a ring, p is an integer of 1 to 3, and f is an integer of 0 to 3, in Formula 3-2, Y 1 is O, S, or SO 2, Y 2 is a direct linkage or CR f R g, and g and h are each independently an integer of 0 to 3, Y 1 is O, S, or SO 2, Y 2 is a direct linkage or CR f R g, and g and h are each independently an integer of 0 to 3, in Formulae 2-1, 2-2, 3-1, and 3-2, R 1 to R 8 and R a to R g are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, wherein substituted means substituted with at least one substituent selected from the group consisting of deuterium, halogen, cyano, nitro, amino, silyl, oxy, thio, sulfinyl, sulfonyl, carbonyl, boron, phosphine oxide, phosphine sulfide, alkyl, alkenyl, alkoxy, hydrocarbon ring, aryl and heteroaryl. R 1 to R 8 and R a to R g are each independently a hydrogen atom, a deuterium atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, wherein substituted means substituted with at least one substituent selected from the group consisting of deuterium, halogen, cyano, nitro, amino, silyl, oxy, thio, sulfinyl, sulfonyl, carbonyl, boron, phosphine oxide, phosphine sulfide, alkyl, alkenyl, alkoxy, hydrocarbon ring, aryl and heteroaryl.