The invention relates to a real-time data publishing method for an Internet of Things. The real-time data publishing method comprises the following steps: acquiring perceptual information data of the Internet of Things and transmitting the perceptual information to a data publishing gateway in real time through perception equipment; converting the real-time perceptual data into an IP pocket and transmitting the IP pocket to a data publishing server through the data publishing gateway; managing the real-time perceptual data through the data publishing server; accessing the data publishing server and transmitting a registration request to the data publishing server through a Web client by a user; logging in the data publishing server by using a registration name and a password of a user registering successfully, and acquiring system data publishing service. The invention further discloses a real-time data publishing system for the Internet of Things. As a Web technique and an Internet of Things technique are combined, and data acquired by bottom layer perception equipment are transmitted through WebSocket connection established with the Web client through the data publishing server in real time, real-time Internet of Things perceptual data publishing service to the user is achieved in a Web mode, and an Internet of Things data publishing platform which spans platforms and is instantaneous and easy to use is provided to users.