【Abstract】Objective To investigate and analysis the cases of the empty ambulance returning in prehospital emergency medical care of Deyang city, to find the reasons and make the policy to reduce the rate of empty ambulance returning, for the goal to increase the emergency efficiency and reduce the medical resource waste. Methods The pre-hospital emergency cases of Deyang city from 2014.01 to 12were investigated, the characteristics and reasons of the empty returning ambulance cases were compared and analyzed. Results There were 7589cases of empty ambulance returning in 2014, the rate was 24.70%, which comparing with 2013（25.33%）, there was no significance. The first five reasons were remission(40.51%), coming to hospital by self(36.50%), prehospitaldeath(8.00%), mild disease condition(6.50%), having dispute(5.39%), and the first five disease were faint（23.50%）, traffic accident（22.49%）, trauma（18.50%）, drunkenness（10.50%）, sudden death（7.48%）.The calling for help point of empty ambulance returning mainly located in the urban areas, accounting for 76.15%, and there was a significant difference in the area distribution between the empty ambulance returning and effective ambulance returning.Conclusion Under the leading of the health department of government, with total social participation, making the corresponding strategies to improve the residents ability of selfsave and mutual save, would effectively reduce the empty ambulance returning and medical resources wasting.