Todays, morbidity and mortality due accidents are the second leading cause of death for children. According the results of researches, the causes of hospitalization of many children are ignorance of the parents. After car accidents, drowning, airway obstruction by solid food and reflux back into the throat and lungs, burning with hot materials and fire, accidental poisoning and drug substances, falling from the height are other causes of morbidity and mortality in children under five years. Considering this issues, the researchers intend to survey the most common cause of morbidity and mortality rate due unwanted events and accidents in children under five years (2010-2015). This is a retrospective - cross sectional study which investigated the causes of deaths under five years from 2010-2015. The questionnaire of child mortality of Ministry of Health, Treatment and Medical Education was used by trained experts to collect data. Then collecting data were tabulated, entered in SPPS version 20.0 and analyzed by statistician. The results showed that the number of deaths in children under 5 years was 144 children in 2010. The greatest cause of death as suffocation in water was 4% and 2% due to vehicle crashes, burns 2% and 1% was due to milk aspiration. Children morbidity and mortality rate was 114 children, 3% due to suffocation in water and 2% due to accident in 2011. The mortality rate of children was 138 which 6% of child deaths due to suffocation in water, 4% due to accident, 3% due to burning and 3% due to suffocation under breast feeding in 2012. The number of child deaths was 146 which 4% due to suffocation in the water and 2% were due to suffocation under breast feeding in 2013. Accidents due to unwanted events usually happen due to brief parents. Instead of that the consequences of those unwanted events and fall are the innocent children for suffering and disability.