> For the complete documentation index, see [llms.txt](https://support.backpack.exchange/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.backpack.exchange/support-docs/cn/qian-bao/shen-me-shi-backpack-qian-bao.md).
# 什么是 Backpack 钱包？
Backpack 钱包 是一款**注重安全性的自托管加密钱包**，支持 Solana、Ethereum、Optimism、Arbitrum、Polygon、Base、Sonic 等多个区块链。它让您对 加密资产拥有完全控制权。
## **Backpack Wallet 可满足您的所有加密需求。**
* 发送和接收加密资产
* 兑换加密代币
* 质押加密资产
* 查看、保护和交易 NFT
* 连接冷存储硬件钱包（Ledger、Trezor、Keystone）
* 多签钱包保护（Multi-Sig）
* 连接开发者测试网
[**下载Backpack钱包（支持浏览器、IOS、Android）**](https://download.backpack.app/BQcg/i4uu9wj4)
***
## Backpack 钱包是储存NFT的安全选择
**NFT 集合锁定**（Collection Locking） 是一项易用功能，当 NFT 处于锁定状态时，钱包将自动拒绝所有交易请求。注意：NFT 集合锁定目前仅适用于部分特定项目。
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