This paper proposes a smart highway navigation system using Li-Fi (Light Fidelity) technology. Li-Fi uses visible light communication to transmit data using LED lights at speeds greater than Wi-Fi. The system would install Li-Fi transmitters in streetlights that would send location and direction data to vehicles equipped with Li-Fi receivers. The receivers would display the navigation information on an LCD screen. This system could provide automatic navigation for travelers on highways without needing mobile networks or GPS. It was simulated using Proteus software and the prototype had transmitters with microcontrollers and high-intensity LEDs and receivers with LDR photo detectors connected to another microcontroller and LCD display.