To provide a hole-transporting material having an excellent hole- transporting performance and durability.

The material is obtained by containing a copolymer which comprises (A) a structural unit represented by formula (1) (wherein R1 is a hydrogen atom, alkyl group or aryl group; R2, R3, R4 and R5 are a hydrogen atom, alkyl group, alkoxy group, aryl group or amino group; X1 is a group represented by formula (2) or a group represented by formula (3); Z is an oxycarbonyl group, a group represented by formula (4) or a group represented by formula (5); m is 0 or 1; n is 0 or 1) and (B) a structural unit represented by formula (6) (wherein R6, R7 and R8 are a hydrogen atom, alkyl group or aryl group; X2 is a phenylene group or a methylenephenylene group; p is 0 or 1) in the molar ratio of (A) and (B) of 5:95 to 95:5.