The utility model discloses an electric automobile controller with temperature alarm function, set up the temperature acquisition module and the storage module of each position in electric automobiledriving system respectively including controller and a plurality of, the input of controller is connected with signal processor's output, and signal processor's input is connected with a plurality oftemperature acquisition module's output respectively, and a plurality of temperature acquisition module's power input end all is connected with power module's output, and power module's output still is connected with the input of controller, and one of them output of controller passes through rotary speed controller and is connected with the control end of motor. This electric automobile controller with temperature alarm function can be in driving system during the operational environment high temperature, orders about the rotational speed that rotary speed controller reduces the motor automatically to reduce the speed of a motor vehicle, drive the radiator simultaneously and cool down, the too big and damage driving system of to avoid electrical rotational speed, thus can improve electricautomobile's life.