The dynamical properties of a three level cascade atom interacting with pair coherent state are studied. Both Rabi oscillation and the time evolution of the cross correlation function show collapse and revival phenomena whether the individual field modes are detuned from the intermediate atomic level or not, but the times of collapses increase quickly with increasing the detuning amount. We also observed that the modes of pair coherent state show both correlation and anticorrelation depending on the time of observation.