The invention provides a multifunctional mobile phone storage device which comprises a box body, wherein a magnetic-suspension accommodating bench is arranged in the box body, a flexible supporting rod is arranged at the lower end of the box body, a magnetic adsorption clamp is arranged at the lower end of the flexible supporting rod, the flexible supporting rod and the magnetic adsorption clamp are matched to support the box body, a loudspeaker is arranged on the box body, a Bluetooth connector is arranged on the loudspeaker, and the loudspeaker and a mobile phone put in the box body can be mutually connected through the Bluetooth connector. By means of the magnetic-suspension accommodating bench, the mobile phone can be accommodated; furthermore, the box body made of an anti-radiation resin material can isolate radiation of the mobile phone; furthermore, the loudspeaker can be used for playing music, so that a user can use the mobile phone put in the box body to enjoy music, and usequality and sense are improved; furthermore, the box body can be clamped at a bedside by the flexible supporting rod and the magnetic adsorption clamp, so that convenience is brought to the user to take the mobile phone.