Light Fidelity (Li-Fi) is a new technology for wireless communication. In this article, Li-Fi technology will be analyzed in details. Its applications, challenges and limitations will be mentioned. Li-Fi will be compared with Wireless Fidelity (Wi-Fi). In industrial automation systems, production process should be fast and safely. Unlike Wi-Fi, high-speed internet connection is provided using Li-Fi technology. Therefore, applicability of industrial automation systems of Li-Fi technology will be examined. 