Abstract: To explore the application potential of GS1 Digital Link technology in product logistics, the basic structure,coding characteristics and technical advantages of GS1 Digital Link and GS1 system were analyzed and studied respectively. By leveraging the GS1 Digital Link technology, which provides Web address coding for relevant objects throughout the entire logistics process from the source to retail, the study used the example of the logistics process of live hairy crab. A web coding system for live hairy crab based on GS1 Digital Link was established. This aims to provide standardized, dynamic and diverse coding data support for product marketing and traceability.