Mobile phone shell

The utility model relates to a mobile phone shell. The mobile phone shell comprises a shell body which can be in buckling connection with a mobile phone body. The mobile phone shell is characterized in that a heating thermal-insulation element which is corresponding to a portion where the mobile phone body is assembled with a lithium battery is arranged inside the shell body; a power-supplying power source which is connected with the heating thermal-insulation element is also arranged inside the shell body; and the power-supplying power source is connected with the heating thermal-insulation element so as to form an thermal-insulation heating loop. Compared with the prior art, and according to the mobile phone shell of the utility model, the heating thermal-insulation element is arranged inside the mobile phone shell body; the power-supplying battery supplies power for the heating thermal-insulation element; after emitting heat, the heating thermal-insulation element can heat the lithium battery which contacts with the heating thermal-insulation element, such that the temperature of the lithium battery can rise; and therefore, the lithium battery of the mobile phone can work under proper temperature, and the lithium battery can be protected, and the lithium battery is not prone to being damaged by over-low temperature.