PURPOSE: A mobile phone supporting device is provided to use a mobile phone conveniently and safely without worrying about dropping the phone by removing a chance of being separated from a hand. CONSTITUTION: A mobile phone supporting device comprises: a round receiving part formed with a latching projection in the central rear side of a mobile phone case(1); a rotation round plate(7) placed inside of the round receiving part; more than one slits(9,9') formed in the rotating round plate; a band(12) inserted into the slits; and a supporting projection preventing the rotating round plate from being separated.
