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In this paper, a modern logistics monitoring platform based on the Internet of Things was studied and its system architecture and functions were particularly designed. The platform was designed based on the following technologies. In aspect of goods identification, a global unified electronic product code EPC was adopted and each goods was given a unique code that was according with international standards. Reading and writing EPC data was by taking use of RFID technology, which read data from electronic tags via a wireless non-contact method. In aspect of goods code management, new concepts of dynamic EPC and static EPC were proposed for goods in transport and movement. Through introduction of dynamic EPC and static EPC, data flow significantly was reduced, the management process was simplified and management efficiency was improved. In aspect of network transmission, both wired network and wireless network were taken for transmission task. Wired networks were available based on Internet and LAN. For mobile sites, wireless network GRPS was used for communication. In aspect of positioning goods, global positioning system GPS was used for location and tracking of goods. In aspect of platform function design, the system's function requirements were analyzed and designed, and a series of its functions were proposed, such as real-time data acquisition, automatic alarm, remote control, data control and processing, historical information record and product quality safety tracing, market analysis and intelligent projections etc.. Modern logistics monitoring platform based on the Internet of Things, because of its advanced technologies, excellent performances and integrated functions, would play an important role in the development of modern logistics.