Purpose: To evaluate the emergency medical protocols and need assessment through the case report Method: The study investigated the emergency call system through the 1339 emergency patients information center in 1997. Results: The emergency calls tend to follow general trends of the type of cases : abdominal pain (13.5%), unconsciousness(12.0%), traffic accidents (7.4%), bleeding (6.6%), respiration difficulty (5.9%). This was all collected through emergency medical protocols injury and poisoning (22.3%), symptom (51.6%), others (26.1%). Conclusion: The results suggest that a specific training program for emergency medical dispatchers should be established, and emergency medical dispatcher managers must review the cases on the basis of emergency medical protocols every year. Emergency medical services, furthermore, will continue to raise the standard for emergency medical dispatching.