With the rapid development of 5G technology,the number of Internet of Things devices is proliferating and application scenarios are becoming diverse,and the network needs to meet the requirements for higher data transmission rates,lower latency,stronger connection reliability,and wider coverage.At the same time,the network needs to support massive device connectivity,ensure data security and privacy protection,and have efficient energy management capabilities.The article aims to discuss the construction strategy of Slicing Packet Network(SPN)in 5G Internet of Things scenarios,mainly analyzing the SPN application scenarios,outlining the SPN construction strategy,and proposing corresponding solutions for the challenges of network slicing technology implementation and low latency and high reliability for the reference of related personnel.