An electronic device storage/carrying case is adapted for storing and supporting an electronic device, and includes a case body, a first supporting component, and a second supporting component. The case body defines a storage space for storing the electronic device, and includes a front wall formed with an opening. The first supporting component is pivoted to the case body and is pivotable upwardly relative to the case body to a propping position for supporting the electronic device, and downwardly relative to the case body to a storing position, where the first supporting component is stored in the case body. The second supporting component is connected movably to the case body and is movable between a carrying position, where the second supporting component extends outwardly of the case body via the opening in the front wall, and a supporting position, where the second supporting component is disposed in the storage space.