# Help Center ## 简体中文 - [永续合约简介](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/master.md): 什么是永续合约 - [概述](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1.md) - [资金费率](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/zi-jin-fei-lv.md) - [标记价格](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/biao-ji-jia-ge.md) - [指数价格](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/zhi-shu-jia-ge.md) - [阶梯强平机制](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/jie-ti-qiang-ping-ji-zhi.md) - [保险基金](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/bao-xian-ji-jin-yu-fen-tan.md) - [U本位合约 与 币本位合约](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/u-ben-wei-he-yue-yu-bi-ben-wei-he-yue.md) - [自动减仓（ADL）](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-1/zi-dong-jian-cang-adl.md) - [USDT本位永续合约](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-2.md) - [USDT永续合约介绍](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-2/untitled.md) - [杠杆和持仓上限](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-2/gang-gan-he-chi-cang-shang-xian.md) - [阶梯维持保证金率](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-2/jie-ti-wei-chi-bao-zheng-jin-lv.md) - [保证金和盈亏计算](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-2/bao-zheng-jin-he-ying-kui-ji-suan.md) - [币本位永续合约](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-3.md) - [币本位永续合约介绍](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-3/bi-ben-wei-yong-xu-he-yue-jie-shao.md) - [杠杆和持仓上限](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-3/gang-gan-he-chi-cang-shang-xian.md) - [阶梯维持保证金率](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-3/jie-ti-wei-chi-bao-zheng-jin-lv.md) - [保证金和盈亏计算](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled-3/bao-zheng-jin-he-ying-kui-ji-suan.md) - [功能指南](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled.md) - [永续合约使用指南](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/chainup-yong-xu-he-yue-shi-yong-zhi-nan.md) - [全仓和逐仓保证金模式](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/untitled.md) - [单向持仓和双向持仓](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/dan-xiang-chi-cang-he-shuang-xiang-chi-cang.md) - [条件单](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/untitled-1.md) - [止盈止损](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/zhi-ying-zhi-sun.md) - [委托止盈止损](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/wei-tuo-zhi-ying-zhi-sun.md) - [合约网格](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-wang-ge.md) - [合约跟单](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-gen-dan.md) - [如何进行带单交易](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-gen-dan/ru-he-jin-xing-dai-dan-jiao-yi.md) - [带单分润](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-gen-dan/dai-dan-fen-run.md) - [如何进行跟单交易](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-gen-dan/ru-he-jin-xing-gen-dan-jiao-yi.md) - [合约跟单交易规则](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/he-yue-gen-dan/he-yue-gen-dan-jiao-yi-gui-ze.md) - [体验券卡券中心](https://futuresdoc.gitbook.io/help-center/jian-ti-zhong-wen-3/yong-xu-he-yue/untitled/ti-yan-quan-ka-quan-zhong-xin.md) ## English - [Introduction to perpetual contracts](https://futuresdoc.gitbook.io/help-center/master.md): What is perpetual - [Overview](https://futuresdoc.gitbook.io/help-center/perpetual/overview.md) - [Funding Rate](https://futuresdoc.gitbook.io/help-center/perpetual/overview/funding-rate.md) - [Mark Price](https://futuresdoc.gitbook.io/help-center/perpetual/overview/mark-price.md) - [Index Price](https://futuresdoc.gitbook.io/help-center/perpetual/overview/index-price.md) - [Ladder balancing mechanism](https://futuresdoc.gitbook.io/help-center/perpetual/overview/ladder-balancing-mechanism.md) - [Insurance fund](https://futuresdoc.gitbook.io/help-center/perpetual/overview/insurance-fund-and-allocation.md) - [ADL](https://futuresdoc.gitbook.io/help-center/perpetual/overview/adl.md) - [USDT margined perpetual contract](https://futuresdoc.gitbook.io/help-center/perpetual/untitled.md) - [USDT Perpetual Contract Introduction](https://futuresdoc.gitbook.io/help-center/perpetual/untitled/usdt-perpetual-contract-introduction.md) - [Leverage and position limit](https://futuresdoc.gitbook.io/help-center/perpetual/untitled/leverage-and-position-limit.md) - [Ladder Maintenance Margin Rate](https://futuresdoc.gitbook.io/help-center/perpetual/untitled/ladder-maintenance-margin-rate.md) - [Margin and profit/loss calculations](https://futuresdoc.gitbook.io/help-center/perpetual/untitled/margin-and-profit-loss-calculations.md) - [Coin margined perpetual contracts](https://futuresdoc.gitbook.io/help-center/perpetual/untitled-1.md) - [Currency Standard Perpetual Contract](https://futuresdoc.gitbook.io/help-center/perpetual/untitled-1/currency-standard-perpetual-contract.md) - [Leverage and position limit](https://futuresdoc.gitbook.io/help-center/perpetual/untitled-1/leverage-and-position-limit.md) - [Ladder Maintenance Margin Rate](https://futuresdoc.gitbook.io/help-center/perpetual/untitled-1/ladder-maintenance-margin-rate.md) - [Margin and profit/loss calculations](https://futuresdoc.gitbook.io/help-center/perpetual/untitled-1/margin-and-profit-loss-calculations.md) - [Functions](https://futuresdoc.gitbook.io/help-center/perpetual/functions.md) - [Perpetual contract user guide](https://futuresdoc.gitbook.io/help-center/perpetual/functions/perpetual-contract-user-guide.md) - [One-way and two-way positions](https://futuresdoc.gitbook.io/help-center/perpetual/functions/one-way-and-two-way-positions.md) - [Conditional Order](https://futuresdoc.gitbook.io/help-center/perpetual/functions/conditional-order.md) - [Take Profit, Stop Loss TP/SL](https://futuresdoc.gitbook.io/help-center/perpetual/functions/take-profit-stop-loss-tp-sl.md) - [Take Profit Stop Loss Order](https://futuresdoc.gitbook.io/help-center/perpetual/functions/take-profit-stop-loss-order.md) - [Contract Grid](https://futuresdoc.gitbook.io/help-center/perpetual/functions/contract-grid.md) - [Futures Copy](https://futuresdoc.gitbook.io/help-center/perpetual/functions/futures-copy.md) - [How to carry out a transaction](https://futuresdoc.gitbook.io/help-center/perpetual/functions/futures-copy/how-to-carry-out-a-transaction.md) - [Profit Sharing](https://futuresdoc.gitbook.io/help-center/perpetual/functions/futures-copy/profit-sharing.md) - [How to copy trade](https://futuresdoc.gitbook.io/help-center/perpetual/functions/futures-copy/how-to-copy-trade.md) - [Futures copy trading rules](https://futuresdoc.gitbook.io/help-center/perpetual/functions/futures-copy/futures-copy-trading-rules.md) - [Bonus Voucher](https://futuresdoc.gitbook.io/help-center/perpetual/functions/bonus-voucher.md)