In order to explore how the Internet of Things implements a secure Internet of Things gateway technology, the author proposes a research on a secure Internet of Things gateway technology based on multicommunication methods. This method recommends key technical problems and solutions based on information represented by multiple communication methods and explores how the Internet of Things can realize the research of Internet of Things gateway technology. Research has shown that the security IoT gateway based on multiple communication methods is about 40% more efficient than the traditional method. By studying some exploratory guidance and suggestions for the development of the Internet of Things, it is found that there are still many problems to be solved before realizing the real Internet of Things environment.