Abstract The core objective of the research is to show how sustainable human resource development (SHRD) practices can support organizational excellence (OE) through internal corporate social responsibility (CSR) in top 10 Egyptian banks (according to sustainability and CSR initiatives), and by reviewing previous studies in this regard, a proposed model was designed for research hypotheses, illustrating the relationships between the research variables. To collect the primary data, a questionnaire was designed with three scales:  for SHRD, internal CSR and OE. The necessary tests were conducted to assess the validity of the research variable models. The questionnaire was directed to a sample of employees in the top 10 Egyptian banks, the sample size was (382 employees). The questionnaire was distributed to employees through google form. The researcher concluded that there is a positive statistically significant effect of the SHRD in its three dimensions on OE, and the internal CSR mediates the relationship between SHRD and OE.