Abstract: The objective of the study was to evaluate the influence of principals’ maintenance of ICT equipment on usage of ICT for teaching and learning in secondary schools in Kisumu County, Kenya. Concurrent triangulation within mixed methods research design was used. Disproportionate stratified random sampling was used to select99 principals from a study population of 132in order to administer questionnaires on them. Furthermore, 28 principals, 28 deputy principals and 35Heads of Department (HODs) were interviewed. Questionnaire reliability was ascertained at (r) = 0.739 using the split-half technique. Results revealed that principals’ performance in maintenance of ICT equipment was above average and statistically significant (α= .287; p<.05). It was concluded that principals’ maintenance of ICT equipment significantly influenced usage of ICT for teaching and learning in secondary schools in Kisumu County. It was recommended that principals should ensure ICT equipment is well maintained and repaired regularly in case of damage so that it serves the intended purpose in teaching and learning.