Automobile airbag electric control device and control method thereof

The invention discloses an automobile airbag electric control device. The device comprises a micro processor, a left side impact sensor, a right side impact sensor, an ignition trigger circuit, a standby power source, an alarm circuit and a data collecting circuit, wherein the left side impact sensor, the right side impact sensor, the ignition trigger circuit, the standby power source, the warning circuit and the data collecting circuit are respectively connected with the micro processor. The left side impact sensor and the right side impact sensor are used for detecting impact on the left side and the right side of an automobile respectively and sending collected left side sensing information and right side sensing information to the micro processor; the signal collecting circuit is used for collecting acceleration information of the automobile and sending the acceleration information to the micro processor; the micro processor judges whether an airbag needs to be detonated or not to control the alarm circuit to give an alarm; the ignition trigger circuit is used for monitoring whether a main power source of the automobile airbag supplies power or not, the standby power source is switched through the micro processor, and the automobile airbag is triggered through the ignition trigger circuit. Therefore, the airbag is controlled to be detonated through the electric control device, and injuries to passengers are effectively reduced.