This research is motivated importance of reduction in the difficulties experienced by the students in making career decisions so that learners are able to make a career decision is "right" that is, the process of making the right decision and best suited to the characteristics and individual goals. The purpose of this study is to obtain an overview effectiveness of career counseling services trait and factor to reduce the career decisions maiking difficulty Class XI students. Research using quasi-experimental methods. The design of this study is nonequivalent pretest - posttest control group design (pretest-posttest two groups). The instrument in this study was a career decision making difficulty questionnaire of students. Subjects were students of class XI of SMAN 3 Bandung school year 2013/2014 were taken by purposive sampling technique, and then raffle determine experimental group and the control group. Hypothesis testing is performed using the t test statistic, namely through statistical analysis of the independent t-test (independent sample t-test) using SPSS 20.0 for windows. The results showed: (1) the general difficulty making career decisions of students in middle category, (2) female students were more likely to have difficulty than male students, (3) the design of interventions in stacking based needs analysis, (4) career counseling trait and factor effective to reduce the difficulties students make career decisions.