The goal of our study was exploration of the factor structure of the MFQ-FF inventory on a sample from Serbian population, and the relations of measures from this inventory (friendship functions) with personality traits, as operationalized by the seven factor model proposed by Tellegen and Waller. For this purpose 154 University of Nis students completed the Serbian version of the MFQ-FF inventory and Lexi-70. The results show that factor structures of certain MFQ-FF scales deviate somewhat from theoretical expectations. Confirmatory factor analysis produced relatively poor levels of fit, while exploratory factor analysis showed that loadings of five items differ substantially from theoretical expectations. As for correlations with personality traits, evaluative dimensions and negative emotionality were found to correlate with the MFQ-FF general factor, and correlations of specific functions with Openness to experience, Positive emotionality and Consciousness were also found. All obtained correlations were low.