How to Delete Multiple Photos on iPhone
The Apple iPhone includes a camera to capture spontaneous moments in photos. Sending them to your friends and family or posting them to your Facebook account is part of the fun of having an iPhone. Occasionally, you may want to clean up your Camera Roll or photo albums. Rather than delete one photo at a time, you can delete multiple photos at once.
Turn on the iPhone and tap the "Photos" icon on the home screen.
Select "Camera Roll" or any of your albums. Tap the action icon in the top right corner; it resembles a box with an arrow coming out of it.
Tap each photo that you wish to delete. As you tap, the photo fades and a red circle with a check mark appears on it. Continue to tap until you have selected all the photos you want to delete.
Tap the "Delete" button in the lower right corner.
Confirm the deletion on the pop-up screen by tapping "Delete Selected Items."