A vehicle driver guarding system using a vehicle telematics service and a control method thereof are provided. The vehicle driver guarding system includes: a vehicle telematics system for receiving a final destination, calculating a final destination arrival expectation time, notifying a central information center of the calculated expectation time through a mobile communication system, receiving a vehicle driver guard confirmation message from the central information center, and transmitting a response message to the received confirmation message, to the central information center; and the central information center being notified of the expectation time, transmitting the vehicle driver guard confirmation message to the vehicle telematics system when the notified expectation time lapses and then a preset time lapses, and performing a vehicle driver guarding function upon non-reception of the response message within the preset time.