如何在 MetaMask 上設置 Arbitrum：2025 完整指南

#UP# #ARB# #ON# Diving into the world of crypto can be daunting, but setting up your Arbitrum wallet doesn’t have to be. If you’ve been curious about reducing Ethereum transaction costs or exploring faster alternatives, you’re on the right track. Our guide on Arbitrum wallet setup will walk you through connecting Metamask to Arbitrum and mastering the Arbitrum network configuration. Discover how Metamask Arbitrum integration empowers cost-effective transactions. Setting up Arbitrum on Metamask involves precision in entering Arbitrum network parameters. Ready to revolutionize your crypto experience with Arbitrum? Let’s get started.

Arbitrum represents a significant advancement in Ethereum scaling technology, functioning as a Layer 2 solution that processes transactions off the main chain while maintaining security through the Ethereum network. This architecture enables transaction throughput that exceeds Ethereum mainnet by approximately 40-50 times, with substantially reduced gas fees—typically between 80-90% lower than Layer 1 transactions. The protocol utilizes optimistic rollup technology, aggregating multiple transactions into a single batch that settles on Ethereum periodically.

The distinction between Arbitrum and Ethereum becomes apparent when examining transaction costs and speed. Where Ethereum mainnet transactions might cost $15-50 during peak congestion, equivalent Arbitrum transactions cost mere cents. This economic efficiency has driven the ecosystem to host over 500+ decentralized applications spanning DeFi, NFT marketplaces, and gaming platforms. Understanding this technological foundation proves essential before establishing your Arbitrum wallet setup, as it clarifies why connecting Metamask to Arbitrum has become a priority for cost-conscious crypto participants.

The process of connecting Metamask to Arbitrum requires accessing your wallet’s network management interface. Within MetaMask, locate the network selector dropdown—typically displayed at the top of the extension showing your current network. Select “Add Network” and you’ll encounter the manual network configuration screen. Here, the Arbitrum network parameters require precise input to establish proper connectivity.

For Arbitrum network configuration, input the following technical specifications: the network name should be designated as “Arbitrum One,” with the RPC URL set to https://arb1.arbitrum.io/rpc. The Chain ID must be entered as 42161, while the currency symbol should be “ETH” and the block explorer URL as https://arbiscan.io. These Arbitrum network parameters establish the connection between your MetaMask interface and the Arbitrum protocol.

The Metamask Arbitrum integration completes upon entering these details and selecting “Save.” Your wallet now displays Arbitrum One in the network dropdown menu. Setting up Arbitrum on Metamask also requires obtaining ARB tokens for transaction fees—while ETH serves as the gas currency, you’ll need a small amount deposited to your Arbitrum address to execute transactions. Bridge your ETH from Ethereum mainnet using the official Arbitrum bridge, confirming the transaction on Layer 1 before it appears on Layer 2 within minutes.

Experienced users optimize their Arbitrum experience by managing multiple wallet addresses, enabling them to compartmentalize different DeFi strategies and reduce exposure risk. Creating separate MetaMask accounts within the same extension allows portfolio tracking across distinct positions. Additionally, monitoring gas prices on Arbitrum differs from Ethereum—while fees remain consistently low, checking real-time costs through Arbiscan’s gas tracker helps identify optimal transaction windows during network congestion periods.

Integration with decentralized exchanges operating on Arbitrum enhances trading efficiency. Swapping tokens directly on Layer 2 eliminates bridge delays and reduces cumulative costs compared to trading on Ethereum mainnet then bridging assets. Liquidity providers on Arbitrum typically earn between 0.25%-1% fees depending on pool selection, with historical APY data showing returns ranging from 5%-35% across different market conditions. Security practices specific to Arbitrum include verifying contract addresses against official sources, as the network’s growing adoption has attracted malicious projects attempting to replicate legitimate protocols.

Transaction failures on Arbitrum most commonly result from insufficient gas allowances or network configuration errors. If your transaction appears stuck, verify that Arbitrum One displays correctly in your network selector and that your gas limit doesn’t fall below 21,000 units for standard transfers. Some users experience balance display delays—MetaMask occasionally requires manual token import to recognize non-standard tokens on Arbitrum, accomplished by accessing the “Import Token” function and entering the contract address from Arbiscan.

Connection errors preventing access to Arbitrum typically stem from RPC endpoint unavailability. If transactions consistently fail, switching to alternative RPC endpoints such as https://arbitrum.publicrpc.com or https://endpoints.omnirpc.io/arbitrum often resolves connectivity issues. Token approval complications emerge when interacting with decentralized protocols; resetting token approvals through Arbiscan’s token approval checker prevents transaction rejections. Network switching difficulties in MetaMask resolve by clearing browser cache and reinstalling the extension in extreme cases, though this approach requires backing up your seed phrase beforehand. Documentation errors in wallet configuration represent the most prevalent issue—rechecking each network parameter character-by-character against official Arbitrum documentation typically identifies typos preventing successful connections.

This guide provides a complete overview for setting up Arbitrum on MetaMask, highlighting the benefits of the Layer 2 scaling solution for Ethereum. It explains how to configure MetaMask to connect to Arbitrum, reducing gas fees and increasing transaction speed. The article discusses optimizing the Arbitrum experience with advanced tips, troubleshooting common issues, and ensuring secure interactions with decentralized applications. Ideal for crypto users looking to enhance their Metamask wallet with cost-efficient transactions, this guide is practical, informative, and easy to follow.