ERC tokens are a type of digital currency that can be created and managed on the Ethereum blockchain. These tokens are widely used for various purposes, such as fundraising, gaming, and supply chain management. Smart contracts are self-executing contracts with the terms of the agreement directly written into code. They can be used to automate various business processes and reduce transaction costs. This project focuses on implementing ERC tokens, mainly ERC-20, ERC-721, and ERC-1155, in smart contracts to create a secure and efficient transaction platform. The implementation process involves creating and managing ERC tokens using the Solidity programming language and deploying them on the Ethereum blockchain. This report aims to investigate the benefits and limitations of using ERC tokens in smart contracts and the potential impact of this technology on various industries. By examining the implementation of ERC tokens in smart contracts, we will provide insight into how this technology can streamline business processes, reduce costs, and provide more secure and efficient transactions.