Mobile phone shell positioning device

The utility model discloses a mobile phone shell positioning device which comprises a shell, anti-skid grooves are formed in the two sides of the outer surface of the shell, a threaded hole is formed in the middle of one end of the outer surface of the shell, the interior of the threaded hole is in threaded connection with a connecting bolt, and one end of the outer surface of the connecting bolt is fixedly connected with a fixing ring. According to the mobile phone shell positioning device, through the arrangement of the shell, the anti-skid grooves, the connecting bolts and the fixing rings, a mobile phone is installed in the mobile phone shell, so that the appearance of the whole mobile phone is protected, and the anti-skid grooves in the two sides of the shell effectively increase friction force between the palm of a user and the mobile phone shell; the phenomenon that a mobile phone falls off due to the fact that friction force between the mobile phone shell and a palm is too small in the using process i