Collision-induced dissociation dynamic processes have been studied in this paper by using Time-dependnet quantum mechanical perturbation theory. The molecular systems are of the type of the Morse oscillator and the intermolecular exponential repulsive interaction potential. The analytical formula established can be conveniently applied to analyse a variety of physical and chemical problems relevent to CID processes. The numerical calculation for the (I2, He) system shows that vibrational energy is more effective than translational energy in enhancing the rate of the CID processes, as the total energy of the system is fixed. In addition, except the energy barrier, there are no extra dynamical restrictions for CID processes.