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---
title: "Negative Keyword Architecture"
type: concept
tags: [Paid Media, Search Advertising, Campaign Management]
---
## Definition
分层否定关键词列表的系统化构建方法,用于阻止不相关搜索查询触发广告展示,是付费搜索账户优化的关键机制。
## Tier Structure
- **Account-Level**:整个账户通用
- **Campaign-Level**:特定活动级别
- **Ad Group-Level**:特定广告组级别
- **Shared Negative Lists**:跨活动共享的否定列表
## Best Practices
- 定期审计和更新否定关键词列表
- 检测否定关键词与正面关键词的冲突
- 使用决策树结构if query contains X AND Y, negative at level Z
- 按意图阶段分层管理(信息型查询通常需要否定)
## Related Concepts
- [[Search Term Analysis]]
- [[Query Sculpting]]
- [[Intent Classification]]
## Related Entities
- [[Search Query Analyst]]