The present disclosure relates to an indicator for a wiper blade and a wiper blade. The indicator is a device for a wiper blade detachably provided on a wiper arm for cleaning a windshield, including: a main body provided on the wiper blade or the wiper arm; a notifier provided in the main body and configured to generate a light signal that is identifiable with naked eyes; and a controller configured to control an operation of the notifier, wherein the controller is configured to count the accumulated time from a start time at which an external operation is input regardless of whether the wiper blade operates so as to operate the notifier when the accumulated time reaches a predetermine time.