Disclosed is a polymer light-emitting material which contains a polymer compound composed of repeating units represented by the formula (1) or (2) below and having a number-average molecular weight of 103-108 based on polystyrene standards, and exhibits light emission from the triplet excited state. (1) [In the formula, Ar1 and Ar2 independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group; X1 and X2 independently represent O, S, C(=O), S(=O), SO2, C(R1) (R2), Si(R3)(R4), N(R5), B(R6), P(R7) or P(=O)(R8); X1 and Ar2 are bonded with adjacent carbon atoms in the aromatic ring of Ar1; and X2 and Ar1 are bonded with adjacent carbon atoms in the aromatic ring of Ar2.] (2) [In the formula, Ar3 and Ar4 independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group; X3 and X4 independently represent N, B, P, C(R9) or Si(R10); X3 and Ar4 are bonded with adjacent atoms in the aromatic ring of Ar3; and X4 and Ar 3 are bonded with adjacent atoms in the aromatic ring of Ar4.]
POLYMER LIGHT-EMITTING MATERIAL AND POLYMER LIGHT-EMITTING DEVICE