This study aimed to assess the Islamic work ethics and employees' Contextual performance with mediating effect of normative Commitment on the governmental sector in Yemen. The study used cross-sectional survey was designed to assess the Islamic work ethics and employees' Contextual performance with mediating effect of Normative Commitment on the governmental sector in Yemen. A total of 520 participants where randomly study employed a stratified random sampling SPSS 25, and Smartpls3 processed the gathered data. 520 participants were included in the survey, which was fairly enough to conduct this study. IWE -> ECP were found significant with level of significance of 0.01 (P<0.05,β= .368, t= 5.414, p=.000). Meanwhile, IWE -> NCS as well with at the significance level 0.01 (p<0.05,β= 0.661, t= 16.543, p= 0.000). finally, NCS's mediating role indirectly affects ECP through IWE. f^2=77% is considered an excellent effect size and R^244% considered a good fit to data. The study is unique based on its finding that reveals the effect of Islamic work ethics on contextual performance with mediating role of normative commitment. Furthermore, this current study's results may serve as guidance for employees' awareness and implementation of the work ethics based on Islamic principles would motivate and improve contextual performance. In the same context, implementation of IWE in the governmental sector can further strengthen employee normative commitment and consequently enhance contextual performance and high productivity.