In this paper, the triplet-state transient absorption spectra and the dynamic processes of 5, 15-bis (pentafluorophenyl)-10-(phenyl) corrole, 5, 10, 15-tris (pentafluorophenyl) corrole and their corresponding free-base corroles are measured by the laser flash photolysis technique. The measurement results show that the wavelength region of triplet-state absorption of these corroles ranges from 440 nm to 540 nm and the absorption peak wavelength of each sample is 450 nm. The insertion of metal Ga atom into corrole ring shortens the triplet lifetime of corrole under anaerobic condition and makes triplet lifetime longer under aerobic condition, which reduces oxygen quenching rate. The steady-state emissions of singlet oxygen of these corroles are also measured by the infrared luminescence method. The results show that the insertion of metal Ga atom makes singlet oxygen quantum yield of corroles slightly decrease. The results indicate that the heavy atom effect generated from metal Ga atom influences the triplet-state dynamics and singlet oxygen generation of corrole.