The aims of this research is to identify Preventive thinking in sixth preparatory students In order to do so , the researcher reviewed many previous studies and some theories related to the subject of research, and chose the study (Al-Akkadi) for preventive thinking, and its paragraphs were presented to a group of arbitrators specialized in science, psychology, psychometrics, and education , the alternatives to the test were two alternatives and the key to correction is given to the wrong answer (1) and to the correct answer (2), as the test consists of (40) paragraphs distributed over five areas (preventive ideas about Others, preventive ideas about the self, preventive ideas about the world, preventive ideas about the future, preventive ideas about the past) as the scale was applied to a sample of (371) students of the province of Babylon by (175) male students and (196) female students and were selected in the random class method with a proportional distribution from the original community and after analyzing the data statistically using the statistical bag of social sciences spss) (the following result was produced: University students have a good degree of preventive thinking.