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---
title: "Three-Act Structure"
type: concept
tags: []
sources: []
last_updated: 2026-04-30
---
## Aliases
- Three-Act Structure
- 三幕式
- 三幕结构
## Overview
Three-Act Structure三幕式是西方叙事中最经典的戏剧结构模型将叙事分为 Setup建置、Confrontation对抗和 Resolution解决三个部分。该结构可追溯到 Aristotle 的《诗学》,在现代由 [[Robert McKee]]、Syd Field 等人系统化为编剧标准。
## Act Breakdown
### Act I — Setup约占全剧 25%
- 建立 Ordinary World日常世界
- 引入主角
- 建立 Status Quo现状
- Inciting Incident触发事件打破平衡
- Act Climax主角必须做出选择/行动
- Act Break不可逆的决定
### Act II — Confrontation约占全剧 50%
- Rising Action上升动作
- 阻力递增complications, obstacles, setbacks
- Midpoint Shiftmidpoint reversal 或 midpoint revelation
- 叙事债务逐渐积累
- 主角的 lie/belief 受到考验
- Dark Night of the Soul最低点
- Act Break危机揭示
### Act III — Resolution约占全剧 25%
- Falling Action下落动作
- Climax最高潮时刻
- Denouement解决与新平衡
- Thematic resolution主题性结论与 Controlling Idea 对应)
## Relationship to Other Concepts
- [[HeroesJourney]]三幕是组织骨架Hero's Journey 是其内容填充
- [[Kishotenketsu]]:日本四幕结构,在第三/四幕之间无危机,直接延伸——跨文化对比框架
- [[Character-Arc]]角色弧线必须在三幕中完成Setup (want/lie) → Confrontation (testing the lie) → Resolution (confronting truth)