An apparatus and a method for detecting a traffic lane using wireless communication is provided and includes a sensor unit including an image recognition sensor and a radar sensor. In addition, a controller is configured to wirelessly communicate with at least one of a plurality of other vehicles and generate road driving information regarding a traveling vehicle after confirming a reliability of the at least one other vehicle using traffic lane recognition information received from the at least other vehicle. The controller is configured to confirm a traffic lane of the traveling vehicle based on the reliability and output the road driving information.