With the continuous evolution of 5G and the successive development of 6G research, Internet of Things technology, as one of the important scientific and technological trends, has developed rapidly in various fields in recent years. Wireless sensor networks (WSN), as a core component of the Internet of Things, have also been greatly developed. Wireless sensor network technology has a wide range of application prospects and important scientific research value, and its development and application have had a profound impact on many fields such as infrastructure, health care, environment, military defense, automation, and so on. This virtual issue launched 5 articles related to wireless sensor network technology.