A holding support for electronic device is disclosed, which includes a case and a bracket. A bracket compartment is formed on the case and defined by an opening formed on the outer surface of the case. The bracket has a body and at least one finger hole formed thereon for sliding a finger through. The bracket can be retracted in or extended from the bracket compartment by being arranged at a retracted position or extended position, respectively. Therefore, the user can firmly secure the electronic device and prevent from dropping it accidentally.