We investigate the dynamic propagation of a probe field via the tunneling-induced interference effect in a triple modelof quantum dot molecules. By theoretical analysis and numerical simulation, we find that the number of transparencywindow relate to the energy splitting and the group velocity of probe field can be effectively controlled by the tunnelingcoupling intensity. In addition, in the process of light storage and retrieval, when the excited states have no energy splittingin the storage stage but opposite values of the energy splitting in the retrieval stage, the beating signals can be generated.