Objective To discuss the effect of a health- care- worker- led first aid training program about unintentional injuries for primary school students. Methods We established a teachers′ team, which determined the teaching goals and plans according to primary school students′ knowledge of first aid after unintentional injuries.Then 3 sessions of training were carried out in a form of " pushing safety education in the campus", with the contents as wide as fracture, burns, animal/insect bites, foreign body in the eye, nasal bleeding, drowning and choking, as well as cardio-pulmonary resuscitation.Students were evaluated on site at the end of each session. Results There was significant difference between the pre-training and post-training scores of first aid after uninte-ntional injuries （P＜0.05） among the students.After training, awareness rates of 13 unintentional injuries were significantly hig-her than those pre-training among the students.The training quality scores rated by the teachers were all above 4（full mark=5）. Conclusion The practice of health- care- worker- led first aid training on unintentional injuries for primary school students increased students′ knowledge level of first aid after unintentional injuries.It provides evidence for establishment of a scientific safety education system through the hospital-school joint training model.