A N2‐pumped tunable dye laser has been used to obtain the phosphorescence‐excitation spectra at 1.00 Torr and room temperature of the 000‐000, 010‐000, 020‐000, 100‐000, and 110‐000 vibrational bands of the3B1→1A1transition of sulfur dioxide. These spectra support earlier absorption studies regarding perturbations of the3B1state. The results of perturbations in the 110‐000 band fromK′=15 upwards are especially pronounced in the emission studies presented here.