The present invention discloses a photo-curable hole-transport material used in a polymer light-emitting diode. The photo-curable hole-transport material comprises at least one first conjugate structure, at least one connecting structure, and at least one second conjugate structure. The first conjugate structure is a triarylamine derivative. The second conjugate structure is a carbazole derivative. The connecting structure is derived from one structure selected from the group consisting of the following or the combination thereof: urethane and urea structures.