The study examined online electronic resources for service provision in Michael Okpara University of Agriculture Library, Umudike, Abia State, Nigeria. It was guided by four research questions. The study adopted survey research design. The population of the study is 44 library staff. This comprised 26 professionals and 18 Para-professional staff at Michael Okpara University of Agriculture Library, Umudike, Abia State. The instrument used for data collection is a researcher-made four-point Likert rating scale titled: Survey of On-line E-resources Services Provision (SOERSP). Data collected were analyzed using descriptive statistics involving mean scores with a criterion mean of 2.50. Findings of the study revealed, among others, that some online electronic resources are available in the library studied and that online electronic resources are used in the provision of some library services. Based on the findings of the study, it is recommending that efforts should be made to acquire the online electronic resources that are lacking in the library; the library management should ensure that the library staff use the available online electronic resources to provide services. Again, there should be regular training and re-training of library staff on the use of online electronic resources for service provision in the library studied, and that there should be concerted efforts to tackle the problems faced by the library in the application of online electronic resources for service provision.