The utility model discloses a safe system of avoiing is opened to car door comprises sensing mechanism, control mechanism, actuating mechanism, and sensing mechanism includes infrared sensor, no. Two infrared sensor, SCA60C slope tacho sensor, no. Two SCA60C slope tacho sensor, parking brake pull rod, and an infrared sensor and no. Two infrared sensor install respectively at car steering wheel central authorities and pilot set rear, and a SCA60C slope tacho sensor and no. Two SCA60C slope tacho sensor install respectively in actuating mechanism 2 left -hand mirror support and left back tail lamp department, actuating mechanism dodges warning light, buzzing attention device, automatically controlled car door lock switch and two numbers automatically controlled car door locks switches of dying of dying including exploding, explodes to dodge warning light and buzzing attention device and all install the side of facing left in motormeter, and automatically controlled car door lock is died switch and two numbers dead switches of automatically controlled car door lock and is installed respectively in the door internal circuit.