The apparatus for driving ultra-sonic cleaning mirror consists of timers(10, 11) controlling period, a wave generation circuit means(20) generating wave, a wave forming circuit means(30) forming the generated wave, a driving circuit means(40), a ceramic trembler(51), a heater(52), an outer temperature sensor means(60) introducing signals into an input port if the outer temperature of automobile is below 0 deg.C, a driving switch input means(70) inputting the signal to the input port by means of the operation of a driving switch, and a driving controller(80) controlling appropriately the signal from the driving switch input. The outer temperature sensor means(60) inputs the outer temperature of automobile from thermistor(TH) to the non-inversion(+) of comparator and the basic voltage fixed from resistance(R2,R3,R4,R5), that is given temperature, to the inversion(-) of comparator, so that the output compared each signal is input to the driving controller(80) through an inverter(In1). The driving switch input(70) inputs the signal by the operation of driving switch(SW) so that a transistor(Tr1) is operated through resistance(R6,R8) and inputs the signal from the transistor(Tr1) to the input port of the driving controller(80) through an inverter(Tr2).
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