Protecting device includes a main body and a removable cover. The main body receives an electronic device and includes a first holding member and a second holding member. The removable cover includes a first attaching portion, a first supporting portion, a second attaching portion and a second supporting portion. When the removable cover is located on a closed position, the first holding member holds the first attaching portion, or the second holding member holds the second attaching portion. When the removable cover is located on a first open position, the first holding member holds the first attaching portion, and the first supporting portion is configured to support the electronic device. When the removable cover is located on a second open position, the second holding member holds the second attaching portion, and the second supporting portion is configured to support the electronic device.