Disclosed is a liquid nebulization system comprising a power supply unit, a signal generating unit, a liquid storage unit and a nebulizing unit. The signal generating unit receives power from the power supply unit to generate a main signal and at least an auxiliary signal, wherein the main signal and the auxiliary signal are added together to constructively and destructively interfere with one another to form a driving signal, further causing the nebulizing unit to nebulize the liquid contained in the liquid storage unit using the driving signal.