In this paper, thorough comprehensive measure of the open circuit voltage, discharge current, final voltage, and environment temperature of the automobile starter battery, the electromotive force, internal resistance, cold start current, and state of charge are measured out. And by quantifying the characteristics of state when battery is at the condition of open circuit, single-cell short circuit, dead short, vulcanization and performance degradation, the automobile starter batteries health diagnostic program is formed. Meanwhile, combined with the actual usage requirements, the safety and convenience of the car emergency starter, the health diagnosis and emergency ignition are functional integrated together, the automotive starter battery health diagnosis and emergency ignition device is developed. Test shows that the device has good diagnosis and emergency ignition performance.