Supply chain globalisation makes its controlling, managing and quality assurance much more difficult and complex. To tackle these problems, Blockchain technology, as a scattered ledger technology which ensures transparency, traceability and security. This essay offers a critical analysis of blockchain technology, its implementation using Ethereum, and the creation and use of Solidity-language smart contracts. Using these technologies the application aims to realise - Supply chain openness ,Smart contracts , Data sharing & collaboration ,Quality assurance ,Reducing fraud and counterfeiting , Environmental impact tracking ,Auditing and compliance. Keywords: Traceability & security, Distributed ledger technology, Ethereum ,Smart contracts , Solidity language