Objective To study the reasons of people bitted by suspected mad animals.Method Investigated and analyzed the rabies cases by epidemiological methods.Results 3 patients wounded by dog without injected whole vaccine,and died at 40~82 days after biting.2 patients who injected rabies vaccine late,died at 33~55 days after being bitten.The other 7 patients who did not inject rabies vaccine,or injected rabies vaccine but did not inject passive immune agents,all died at 17~67 days after being bitten.Conclusions Conjunctive use passive immune agents,disposal wound timely,injection rabies vaccine were critical to prevent rabies.