The present invention discloses a device for automobile safety in the field of automobile safety, which addresses the problems existing in the prior art that the conventional automobiles tend to be stolen and have a low safety. The device for automobile safety includes an RF antenna (JP1), an RFID module, a GSM unit, a data processing unit (U1), a control unit (U2) and automobile circuits. The device for automobile safety of the invention has numerous benefits, for example an improved theft-proof property and warnings against driving at fatigue and/or beyond the speed limit.