Cell phone support capable of preventing overheating of battery

The utility model discloses a cell phone support capable of preventing overheating of a battery. The cell phone support comprises an upper support and a lower support, wherein a temperature-sensitive color-changing sucker with a built-in heat conduction wire is arranged on the upper support, a thermal deformation rod connected with the heat conduction wire is arranged in the upper support, and a cell phone plug can pass through the lower support and be connected with a cell phone. A hinge mechanism is arranged on the lower support, the long arm of the hinge mechanism contacts the bottom of a cell phone, and the short arm of the hinge mechanism is fixedly connected with the bottom of the thermal deformation rod. When such a structure is employed, the temperature-sensitive color-changing sucker automatically senses the temperature of a cell phone battery. When over-temperature occurs, the color of the temperature-sensitive color-changing sucker changes to warn users. The heat conduction wire transmits heat to the thermal deformation rod, so that the thermal deformation rod generates thermal deformation amount, which is amplified by times under the effects of the hinge mechanism, to separate the cell phone and a cell phone plug and cut of power.