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---
id: service-control-policies
title: "Service Control Policies (SCPs)"
type: concept
tags:
- AWS
- Policy
- Governance
last_updated: 2026-04-18
---
## Summary
AWS Organizations 的策略类型之一,用于集中管理组织内所有账户的最大可用权限。
## Definition
Service Control Policies (SCPs) 是 AWS Organizations 的一种策略类型,用于设置组织内所有账户的最大权限边界。它们不允许授予权限,而是限制可用的权限范围。
## Key Attributes
- **类型**:组织策略
- **作用域**组织单元OU或单个账户
- **效果**Allow允许或 Deny拒绝
- **优先级**仅拒绝Deny策略优先于 Allow 策略
## Use Cases
- 实施标签规范,阻止创建不带标签的 EC2 实例
- 限制特定区域的资源部署
- 防止删除关键资源(如 CloudTrail、VPC Flow Logs
## Examples
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Deny",
"Action": [
"ec2:RunInstances"
],
"Resource": ["arn:aws:ec2:*:*:instance/*"],
"Condition": {
"StringEquals": {
"aws:RequestTag/CostCenter": "absent"
}
}
}
]
}
```
## Related Concepts
- [[Multi-Account Strategy]]SCPs 是多账号策略的一部分
- [[Gruntwork Landing Zone]]Gruntwork Landing Zone 使用 SCPs 实施治理