Arm band of mobile phone

The invention discloses a mobile phone arm band which is high in integration level, free of wiring and an external power supply, convenient to use, capable of giving out light for prompting and capable of improving the safety of a user. The arm band comprises a bag body (1), two binding belts (3 and 4) arranged on the two sides of the bag body (1), and a light-emitting display device. A wireless charging receiving device is arranged in the bag body (1); a mobile phone bag (2) for accommodating a mobile phone is arranged on the front surface of the bag body (1), the mobile phone with a wirelessreverse charging function is arranged in the mobile phone bag (2), and the wireless charging receiving device receives a wireless charging signal transmitted by the mobile phone and provides power for the light-emitting display device, so that the light-emitting display device emits light to display. The mobile phone arm band can be widely applied to the field of mobile phone accessories. 本发明公开了一种集成度高、无需接线、无需外接电源、使用方便、能够