The utility model relates to an automobile door lock's actuating mechanism and have automobile door lock of this mechanism, the configuration in automobile door lock, the internal locking release mechanism of twin lock provides the drive function, its characterized in that, its include the casing and install in motor in the casing, by the pinion of motor output connection, and with little gear meshing transmission's rack, pinion installation in on the motor output shaft, it is right to have on the casing the motor output shaft at pinion both ends provides clamping?position's centre gripping notch, and is used for holding rack and rather than shape assorted rack spout, be equipped with on the rack with rack spout bottom springiness contaction's elastomer.