The aim of this study was to investigate the effect of organizational socialization and its components on career aspirations in employees of Physical Education General Department of Fars province. The statistical population included all employees of Physical Education General Department of Fars province (N=81). Morgan table was used to determine the statistical sample (n= 66). 72 questionnaires were distributed among the employees and 70 questionnaires could be used. To collect data, a personal characteristics questionnaire as well as two standard questionnaires including Taormina's organizational socialization questionnaire (1994) and career aspirations questionnaire of Bigliardi et al. (2005) were used. In several national and international studies, the validity of the questionnaires was approved. In a pilot study on 30 employees of Physical Education General Department of Fars province, the reliability of organizational socialization questionnaire and career aspirations questionnaire was determined by Cronbach's alpha coefficient as 0.93 and 0.82 respectively. In order to evaluate and compare the descriptive data, descriptive statistics were used and for inferential analysis of data, Kolmogorov-Smirnov test, Durbin-Watson test, structural equation and factor loading in SPSS and PLS (partial least square) software at P≤0.05. Findings showed that organizational socialization variable had a positive and significant effect on the career aspirations variable (0.426). Also, the effect of education, amity, counterparts' support and the future prospects on career aspirations was 0.326, 0.339, 0.223 and 0.33 respectively. Findings of this study showed that organizational socialization variable had a drastic effect on employees' career aspirations and could be considered as a predictor for career aspirations.