Abstract: The present work analytically investigates the existence of Love waves in piezoelectric layered system over transversely isotropic half-space under initial stress. The piezoelectric layer is considered for two different cases, one is electrically open circuit and another one is electrically short circuit. The general dispersion equations have been derived for both the cases. As a special case dispersion equation has been obtained when the lower half-space is free from initial stress. The effect of initial stress parameter of isotropic layer on the Love wave propagation has been exhibited by means of graphs in both electrically open and electrically short circuit cases. It is observed from all the curves that phase velocity increases with the decrease of wave number. It is also found from the curves that the phase velocity of Love wave decreases with the increase of initial stress parameters in both the cases of piezoelectric open circuit and short circuit. The results can be used to understand the nature of wave propagation in piezoelectric structures.