Objective To establish one structural equation model based on the relationship between the intern stressor and its influential factors for undergraduate intern nurses. Methods A stratified-random-cluster sampling method was applied. 682 students were surveyed with a series of questionnaires including such items as assessing intern stressor, social support, personality, coping style, self-efficacy, occupational burnout, general health, turnover intention and general data. Maximum likelihood method was conducted for parameter estimation with LISR...