The invention discloses a multifunctional mobile phone shell. The mobile phone shell comprises a mobile phone shell main body, and is characterized in that a groove is formed in the back surface of the mobile phone shell main body, an elastic rubber seat and a strip-shaped pen clip are arranged in the groove, the back surface of the mobile phone shell main body is connected with a bracket, a transparent interlayer is arranged on one side of the bracket, the transparent interlayer is used for storing cards, money tickets and the like, the elastic rubber base is used for containing earphones, the elastic rubber material is convenient to adapt to fixation of earphone plugs and earplugs of different types, the long pen clamping and inserting part is convenient to fix a short pen and a carry-onpen, the movable support is convenient to support a mobile phone, people can read movies or books conveniently, and the earphone support is simple in structure and convenient to use.