The present invention relates to an adaptive WiFi cigar jack device. The adaptive WiFi cigar jack device according to the present invention comprises: a body insertion unit configured to have a body structure inserted into a cigar jack insertion hole of a vehicle; an electrical power supply unit configured to receive electrical power of the vehicle when the body insertion unit is inserted into the cigar jack insertion hole; an electrical power conversion unit configured to convert electrical power into at least one kind of designated operation electrical power; a universal serial bus (USB) connector unit including a USB connector configured to apply USB electrical power converted through the electrical power conversion unit to the outside; an electrical power charging unit configured to charge at least one kind of electrical power among electrical power supplied through the electrical power supply unit or electrical power converted through the electrical power conversion unit; a signal module for broadcasting an asynchronous wireless signal including a code value by using at least one of vehicle electrical power supplied from the vehicle and charging electrical power charged in the electrical power charging unit, and processing WiFi communications with a designated terminal in a short distance; and an operation unit for operating an operation of the signal module.
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