This study aimed to identify the relationship between lifestyles and the levels of Aspiration among a sample of the eleventh grade students in Ad Dakhiliyah Governorate schools. The study sample consisted of (597) students of the eleventh grade in Ad Dakhiliyah Governorateschools. The descriptive correlative approach, Life Style Personality Inventory (LSPI) developed by (Wheeler, Kern, and Curlette, 1986), translated by Al Shakhanbeh (2010) and used by Al Hujjiyah (2017), and Aspiration Scale developed by Moawad and Abdul-Azim (2005) that was used by Al Riziqi (2015) were used. The study demonstrated the following results: - The most prevalent lifestyle among a sample of the eleventh grade students in Ad Dakhiliyah Governorate schools was (the conforming theme passive lifestyle). - The results showed that the level of Aspiration among the eleventh grade students in Ad Dakhiliyah Governorate schools was high at the macro-level and in each dimension of the scale (the ability to set goals, optimism, acceptance of new, and frustration endurance). - There was a statistically significant correlation among the lifestyles of (the social interest, the conforming theme active, the conforming theme passive and the controlling theme passive) and all Aspiration Scale dimensions and the total score of Aspiration level. - There were statistically significant differences in (the controlling theme active, the exploiting theme passive, the exploiting theme active getting even, and the exploiting theme active hurting others) lifestyles favoring males. - There were no statistically significant differences in (the exploiting theme passive, the conforming theme active, the controlling theme active, the displaying in adequacy theme and the conforming theme passive) lifestyles according to the variable of the Course,s choice (the Literary Stream and the Scientific Stream). While the results indicated that there were statistically significant differences in the social interest lifestyle favoring the students of the scientific stream and there were also statistically significant differences in the lifestyles of the exploiting theme active getting even and the exploiting theme active hurting othersfavoring the students of the literary stream. - There were statistically significant differences in all dimensions of the Aspiration Scale and the total score according to the variable of gender (males & females) favoring females, while there were no statistically significant differences in all dimensions of the Aspiration Scale and the total score of the scale according to the variable of the Course,s choice (the Literary Stream and the Scientific Stream).