Library anxiety is a type of fear that is associated with library user who becomes uncomfortable when using the library and its facilities. The aim of the study is to investigate the relationship between affective tendency, sex and library anxiety among undergraduate students and it’s implications for counselling using University of Benin as case study. A correlational research design was used to select a sample size of 200 from a population of 1546 registered users using simple random technique. Data was collected using the Affective Tendency and Library Anxiety Scale (ATLAS) adapted from Bostick (1992). The reliability was determined at 0.83 Cronbach Alpha. The results indicated there is no significant relationship between affective tendency and library anxiety, while sex differ significantly with library anxiety. Counsellors should engage students on orientation programmes and give out guidelines on how to study and read effectively in the library.