The objects of this research were (1) to study Third-Year Students’ stress at Faculty of Business Administration Rajamangala University of Technology Phra Nakhon. In Overall and each of four aspects: learning management study skills learning environment and relationship with classmate. (2) To compare stress of Third – Year Students Stress at Faculty of Business Administration. In overall and each aspect classified by gender major group grade point average (GPA) place of birth family economic status the inter personal relationship between student and parents child. The simple consisted of 439 Third – Year Students Stress at Faculty of Business Administration. The statistics used for analysis the data were frequency percentage mean standard deviation t-test one way analysis of variance and LSD. The result of the study revealed that: 1. Male and female students had significant different of stress on relationship with friends at .05 level. 2. Students with different major group had significant different on overall stress at .05 level. 3. Students with different grade point average (GPA) had significant different of stress on relationship with friends at .05 level. 4. Students with different family economic status had no different of stress. 5. Students with different place of birth had no different of stress. 6. Students with different interpersonal relationship patterns had no different of stress. 7. Students whose parents had different child rearing styles had different stress in learning management study skills and learning environment significant at .05 level.