Learn how to move the iPhoto Library folder to a new location.
The iPhoto Library folder, located in your Pictures folder, contains photos you imported into your photo library and any albums you've created using iPhoto. If you want to move your iPhoto Library folder to a new location, you must move the entire folder, and select the new location in iPhoto.
Important: If you move, delete, rename, or change files or folders in the iPhoto Library folder, you may be unable to see your pictures in iPhoto.
To move the iPhoto Library folder to a new location:
Quit iPhoto if it is open.
Drag the iPhoto Library folder to the new location.
Open iPhoto. An alert appears that says iPhoto cannot find the iPhoto Library.
Click Find Library.
Locate and select the iPhoto library you moved in step 2.
The steps above apply to iPhoto 2 and iPhoto 4. For iPhoto 1.1.1, see technical document 34879, "iPhoto 1.1.1: How to Move the iPhoto Library Folder to a New Location."