The purpose of this study were; first, to determine the major psychological traumatic stress impact on students due to Israeli military incursions into Jenin Refugee Camp, and to determine the effect of the variables of sex, levels of educational class, and levels of students family income on psychological traumatic stress, Second, to identify the students problems as a result of Israeli forces incursions. The sample of \"135\" upper grades primary school students of both sexes was randomly chosen representing 34% of the target population. To collect the data, a scale of the psychological traumatic stress was validated and administered to the subject of the sample. The result of the study showed that the overall mean of psychological traumatic stress was 56.3%, and it is ranged according to the percentage scale of responses in to a high traumatic stress represents 25.2%; moderate traumatic stress represents 35.6%; & low traumatic stress represents 39.2%. These results considered from psychological perspective are very dangerous and high and will affect the students adjustment and mental health in the future, because 39.2%of students are suffering from psychological traumatic stress. The study also revealed that there were no significant mean differences due to the variables of sex, and family income, but there was a significant mean difference related to the level of student class, in favor of low levels. The study also points out the most important problems facing students as a result of the Israel forces incursions in the Jenin Refugee Camp That include psychological, physical, behavioral, and learning problems.