During the past two decades, there have been tremendous changes on development of information technology (IT). People may do their daily activities using different IT based products such as email, search engines, video conferences, etc. This paper presents an empirical investigation to study the relationship between IT facilities and knowledge management lifecycle components including, knowledge generation, knowledge acquisition, knowledge storage, knowledge transmission and knowledge usage. The study has accomplished among 150 randomly selected people who work for social security organization in city of Esfahan, Iran. Using structural equation modeling, the study has determined that there were positive and meaningful relationship between IT facilities and all components of knowledge management lifecycle.