Bucket policies are strategies that apply to individual buckets and their associated resources. You can use them to grant other users permission to access the corresponding resources.

Use cases

Use a bucket policy if you need to:

Authorize other accounts.

Authorize all users.

Set specific authorization conditions.

Apply different permissions to different users or resources.

Notes

Bucket policies only apply to object-specific actions if the bucket and object owners are the same. Objects not owned by the bucket's owner are not governed by bucket policies by default. To manage such objects through bucket policies, set the objects' ACLs to bucket-owner-entrusted. For instructions, see PutObjectACL.

Configuration methods

There are three configuration methods for bucket policies. Refer to the following documentation to choose the appropriate method:

Creating a bucket policy with a template

tip

For more information on TOS bucket policies and templates, see Bucket policy templates and parameters.

Creating a custom bucket policy in visual view

Creating a custom bucket policy in JSON view

Last updated: 2026.01.04 11:15:05

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