The main purpose of this study was to identify factors that motivate Nigerian cataloguers and also to determine their job performance level". The descriptive research design was used for the study. The population comprised 100 participants at the 2015 Cataloguing, Classification and Indexing section of Nigerian Library Association held at Obasanjo Presidential Library Abeokuta, Ogun State. Data was collected by means of a self-structured questionnaire. Out of 100 copies of the questionnaire distributed, 75 copies (75%) were completed and returned. Data was analyzed using frequency counts, percentage and mean. Findings revealed that job status, promotion, initiative and working environment were the major factors that motivated Nigerian cataloguers. The study also indicated that job performance measurement of the cataloguers indicated high performance ranging from work productivity, quality of work, ability to bring out initiative, among others. The study further showed that incomplete bibliographic records, moving into digitized collection, and lack of facilities to work with were the major challenges facing Nigerian cataloguer in performing their cataloguing role. Based on the findings, the study recommended that library management should ensure that those motivational factors are always put in place in the library. Necessary modern technologies should be made available as well as training to enable them move into the digitized world with ease. Lastly, their working conditions should be improved.