The research aims at : 1- Revealing the role of curriculum in the values system of students at each stage of the instructional level mentioned above. 2- Comparing between values system among students of the three instruction stages. The sampleconsisted of (100) students (male, female) of each stages and each class. The total numbers of research sample is (300) students). To determine the values system of students, the (Rokeach) instrument was used in the three instructional stages. The researcher used the following methods: The statistical analysis (Mathematical mean and One-way ANOVA and person\'s correlation coefficient) was carried out. The values system were varied among the three stages too. There are differences in the values rank at three stages in Instrumental and terminal values by using (Rokeach) classification such differences in instrumental values (Aspiration, validity, competence, intelligence, scarifies, patience, health, acceptanc, courage, logic, all these were significant at level (0.05 , 0.01) And there were statistical significant differences among the three stages at level (0.05, 0.01) at the following terminal values (pleasure, safety, knowledge, arousal, religion and work for doom day, self actualization, acceptance of self, emotional stability and social esteem.