Description: With this research we wanted to establish which knowledge the university graduates of some faculties of University of Maribor need for successful performance of their professional activity and which they can not get from formal study programmes. Hypotheses are implicitly stated in the purpose of this research. The most exposed hypothesis is that the university graduates of individual study programmes express specific needs for professional knowledge and that university graduates of all study programmes express need for common knowledge. We used descriptive non-experimental empirical research method. We decided to investigate some of university graduates who graduated in 2002 and 2003 on following faculties of University of Maribor: Faculty of economics and business, Faculty of education, Faculty of electrical engineering and computer science and Faculty of civil engineering.Basic information about the university graduates involved in the research is presented in the table. Table: Research according to genderGender f F% Male 109 56,2 Female 85 43,8 Total 194 100 Methodology: We can see that there are some answers which are common to all university graduates involved in the research. If we add the answers to the question "Which general knowledge would form possibility for good work?" to these answers, we get summed data shown in the table.Table: Necessary additional and general knowledge f f% Communication 139 71,6 Human relations 108 55,7 Managing 95 49,0 Psychology 76 39,2 Technology 75 38,7 Review of financial operations 64 33,0 Human resources 55 28,4 Pedagogic 28 14,4 Foreign languages 3 1,5 Rhetoric 2 1,0 Computer science 2 1,0 Legislation 2 1,0 Law 2 1,2 Work organisation 1 0,5 Public relations 1 0,5 Total 194 100 We set two explicit hypotheses:- university graduates involved in the research express several specific needs for better professional knowledge, - university graduates involved in the research express a need for common general knowledge. According to the data shown in tables, we can confirm both hypotheses: - during the study 53,3% of the university graduates involved in the research gained enough knowledge to start working, - 61,9% of the university graduates involved in the research would change the present study programme, - suggestions for content changes of study programmes are shown according to results from individual faculties,- ditional knowledge, for which the university graduates involved in the research believe that is necessary for successful working performance, is shown according to results from individual faculties,- general knowledge, for which the university graduates involved in the research believe that is necessary for successful working performance, is summed for all university graduates involved.Although we can confirm both hypotheses, we have to emphasize that gathered data are valid for university graduates involved in the research and we can not generalized them due to the non-representative research. Conclusions: Due to fast science and technology development and adaptation to global market demands, university graduates have a need to modernize, complete and upgrade their knowledge. Our non-representative research has shown concrete needs for knowledge for successful working performance in professional field and concrete needs for general knowledge which enables successful communication and human relations. And this leads to successful working performance, too.