Author(s): Abdul Rahim Abdul Rahman, Suhana MohezarThis paper aims to explain the factors affecting the continued usage of digital library among the Malaysian military officers. Based on organisational support theory (OST), this study extracted variables namely communication, digital library environment and training and education, whilst Net Benefits Individual Impact, Net Benefits Organisational Impact and Satisfaction are drawn from the DeLone and McLean Information System Success Model (ISSM), as antecedents for continued usage of digital library. In order to test the relationships between the variables, this study collected data from 579 military personnel in Malaysia Armed Forces (MAF). Data were analysed using PLS-SEM, a variance-based SEM. The findings indicate that training and education, digital library environment and communication support are among the factors. These findings imply that in order to sustain the continued usage of digital library among the military officers, the management need to provide sufficient training and tools such as online resources and help desks. Although this study provides new insights for digital library implementation that would further improve the IS success model in military context, the results may not be able to be generalised to other countries’ military, since it focuses only on Malaysian setting.