To address limitations of cross-chain openness， security issues， network congestion， and increased transaction costs in the circulation mechanism of existing Non-Fungible Token （NFT）， an open semantic-rich Non-Fungible Data Element （NFDE） chain-network integration architecture named IEN NFDE （Intelligent Eco Networking Non-Fungible Data Element） was designed. Firstly， a transmission protocol for the overlay network was designed， encompassing naming rules， data structure and encoding rules of packets， as well as a data forwarding and verification mechanism based on named addressing. Then， the semantic-rich NFDE was defined by encapsulating metadata and digital assets themselves into an independent digital entity with semantic attributes， enabling free circulation of on-chain and off-chain data， and decoupling the binding limitations between blockchain systems and data elements， and improving the flexibility of data element circulation. Finally， a prototype system of the IEN NFDE architecture was designed and implemented， and its performance was tested. Experimental results showed that when the data transmission frequency exceeds 600 times， compared to the NFT trading platforms based on Transmission Control Protocol/Internet Protocol （TCP/IP） architecture， the prototype system of IEN NFDE architecture reduced the average data transmission delay by at least 46.34%， the total data transmission delay by at least 52.43%， the network communication overhead by at least 36.98%， and increased the throughput by at least 135.71%. These metrics indicate that the prototype system of the IEN NFDE architecture significantly improves the efficiency of cross-chain data circulation while markedly reducing the consumption of network resource. The IEN NFDE architecture not only provides a new efficient solution for the efficient circulation of NFDE， but also effectively alleviates network congestion， reduces transaction costs in practical applications， and offers technical support for the healthy development of NFT market.