The invention provides an ultra-high-voltage transformer cooler control circuit. The ultra-high-voltage transformer cooler control circuit comprises an alternating current single-phase power supply 3Q, a temperature control indicator OTI1, a temperature control indicator OTI2, an alternating current time relay KTI1, an alternating current time relay KTI2, an alternating current time relay KTI3, awinding temperature controller WTI, an alternating current intermediate relay K3, an alternating current intermediate relay K4, a current relay KC, a cooler change-over switch SCN, an oil flow relay K0N, an alternating current time relay KTN, an alternating current time relay KTN1-KTN4, a thermal relay KHN, a thermal relay KHN1-KHN4, a three-phase alternating current air switch QN, a single-phasealternating current air switch QN1, a three-phase oil pump motor MBN and a three-phase fan motor MFN1-MFN4, wherein the SCN has four gears comprising 'standby application, stopping, working and assisting'. The ultra-high-voltage transformer cooler control circuit has the advantages that the control of a traditional relay-contactor is adopted, site operation and maintenance personnel can find and self-process various problems through a loop and does not need to rely on a manufacturer, but the loop is simpler and clearer, a cooler can achieve automatic control, oil pumps can be started one by one, and the intelligence degree is higher.