Internet of Things refers to uniquely identifiable objects as well as their virtual representations in an Internet-like structure.It is related to a number of disciplines and technologies that enable the Internet to reach out into the real world of physical objects and their environments.It has been hailed as the most potentially disruptive technological revolution of our lifetime after the web and mobile accessibility.It becomes even more promising with smart applications like smart cities,smart Grid,smart factories,smart buildings,smart homes,and smart cars.On the other hand,Big Data is a broad term for data sets so large or complex that traditional data processing technologies are inadequate.It has recently been considered as a technology and become a very active research area primarily involving topics related to machine learning,database,and distributed computing.It has been claimed that "the success or failure of the Internet of Things hinges on Big Data".Based on many years of first-hand experience,this talk will provide an overview of IoT and Big Data,including stat-of-the-art and future trends,with a focus on how IoT and Big Data are linked with and applied in various industrial domains and societies.