This stage lighting device is for setting stage lighting for each section from lighting control data (LD) which corresponds to music data (SD), and comprises: a music information acquisition unit (31) for acquiring music information (SSD) in the music data (SD); a first stage lighting unit (321) for setting stage lighting for a first stage lighting section (LBn-1) corresponding to a first section of the music data (SD); a second stage lighting unit (322) for setting stage lighting for a second stage lighting section (SBn) corresponding to a second section of the music data (SD); and a third stage lighting unit (323) for assigning a third stage lighting section (LBnT) between the first stage lighting section (LBn-1) and the second stage lighting section (LBn) on the basis of the music information (SSD) for the first section and the music information (SSD) for the second section, and setting stage lighting for a third stage lighting section (LBnT).
