Resonance Raman spectra (RRs) of tetra(4-aminophenyl) porphine JAPP) were obtained, and density functional calculations were done to help the elucidation of the photorelaxation dynamics of Soret (B-x and By band) and Q(y) electronic transitions. The RRs indicate that the photorelaxation dynamics for the S-0 --> S-3 excited electronic state is predominantly along the totally symmetric porphin ring C-beta=C-beta + CmC alpha stretch, C-m-ph stretch, and simultaneously along the asymmetric nu(CmC alpha)(as) and nu(C alpha C beta)(as) relaxation processes leading wto Q(y) while that for S-0 --> S-2 is predominantly along the porphin ring C-beta=C-beta + CmC alpha stretch and simultaneously along the asymmetric nu(CmC alpha)(as) + nu(C alpha C beta)(as) relaxation processes leading to thermal equilibrium in Q(x). The excited state structural dynamics of TAPP determined from RRs shows that internal conversion B-x --> Q(y) electronic relaxation Occurs ill tells of femtoseconds and the short-time dynamics were first interpreted with account of the time-dependent wave packet theory and Herzberg-Teller contributions,