This present research aimed to identify the degree of availability of mindfulness properties among Tishreen University postgraduate students, in addition to recognizing differences in mindfulness properties according to differences in both sex and specialization (human medicine - education). The research sample consisted of (148) male and female students In the Faculty of Applied Human Medicine and the Faculty of Theoretical Education at Tishreen University during the second semester of the year 2019/2020. To achieve the goals of the research, the researcher built a scale of (23) phrases to measure mindfulness in light of the four mindfulness properties of "Langer theory" after assuring its validity and reliability. Appropriate barometric statistical methods were used - after verification of the distribution moderation - represented by the mean and standard deviation and T-test for two independent groups. The results showed the following: - Availability of mindfulness properties (Novelty Seeking- Engagement – Novelty Producing) among postgraduate students with a high degree, except for the "flexibility" property, as it was available at a moderate degree. - - There were no statistically significant differences among the members of the research sample in the two mindfulness properties (Engagement – Novelty Producing) according to the variable of specialization, while statistically significant differences were found in the "Novelty seeking" property in favor of medical college students, and statistically significant differences were found in a property "Flexibility" in favor of students of the College of Education. -There were no statistically significant differences in all mindfulness properties according to sex.