In this study, stimulated from the results that many similar items were drawn from antecedent variable about personal characteristics and work environment that have an effect on creativity of advertising, I did a survey targeting 56 art directors who are mostly working for big advertising, small and mid-sized ones and advertising production companies and tried exploratory factor analysis. As a result, in individual characteristics, cognitive style and creative personality are newly comprised of three factors of wide cognitive thinking, assuring personality and creative personality and eleven items while work environment is newly constructed of five factors of superior's leadership, relationships with co-workers, organizational environment, advertiser/subcontractor and workload/time for production and twenty eight items. The reliability of individual characteristics shows cognitive thinking =.900, assuring personality =.744, creative personality =.857. And the reliability of work environment shows superior's leadership =.982, relationships with co-workers =.919, organizational environment =.916, advertiser/subcontractor =.961, workload/time for production =.905 with relatively reliable levels. Based on the results of the study, future study will verify validity and objective and concrete research through new analyses will be carried out.