The utility model discloses a personnel system of saving oneself of fleing for one's life in automobile car, including the explosion bolt and the level sensor of setting in the engine bottom that set up respectively before the car, rear windshield is last, the control input end of explosion bolt is connected with the control output electricity that sets up signal controller in the driver's cabin respectively, signal controller's signal input part is connected with level sensor's signal output part electricity. The utility model has the advantage of simple structure, convenient operation can fully ensure personnel's in the car safety. When the aquatic was fallen into to the automobile or do not had by the water logging, level sensor detected when lieing in depth of water 0.3 more than or equal to 0.3 rice, and signal controller begins to send strident chimes of doom, and personnel can manually close the alarm or press the lifesaving switch in the car, if press the whole explosions of the lifesaving switch explosion bolt the that then car is preceding, rear windshield is last, the interior passenger of car this moment can easily push glass open and flee.