Utilization of e-resources by Bachelor of Education Teacher Trainee exposes the learner to up-to-the minute information in multimedia format such as Compact Disk Read Only Memory (CD-ROM) databases, e-journals, institutional digital resources and video recordings among other resources. To benefit from accessing quality information from e-resources, trainees are supposed to evaluate resources. However, there have been complaints from library staff and faculty that trainees of the University of Nairobi were inadequately inducted on evaluation of e-resources. The trainees hardly utilize e-resources while experiencing difficulties in evaluating sources for quality. The study examined trainees' evaluating ability. The objective of the study was to establish trainees' evaluating ability and utilization of e-resources. The study adopted descriptive survey design. Stratified random sampling was used to identify 370 teacher trainees and data was collected using questionnaires, interview guides and document analysis guide. Validity was ascertained using the faculty involved in teacher training processes. The instrument demonstrated high internal consistency (>.90) using test-retest method. Data was analyzed using descriptive and inferential statistical techniques to establish the relationship between trainees evaluating ability and utilization of e-resources. The findings revealed a significant statistical association between trainees' evaluating ability and utilization of e-resources. The study recommended that a policy be formulated at the University of Nairobi requesting trainees to attend information literacy sessions conducted by the library. The trainees should be taught evaluation criteria to improve learners' practices of assessing accuracy, currency, objectivity, coverage and authority of information that support academic tasks. Replication of a longitudinal study should be undertaken to monitor trainees' evaluating ability from first year to fourth year.