This research is studying the association of corporate governance and sustainability of Nigerian insurance companies. The research is investigating on the association of governance of corporate and sustainability (assets’ return) of Nigerian insurance companies. Ex-post facto is adopted as research design from financial reports of insurance companies for ten (10) years (2010-2019). This study is to employ multiple regression analysis as the estimating tool for investigating effect of governance of corporate on the Nigerian insurance enterprises sustainability. We, however conclude that the Size has insignificant impact on the Nigerian insurance enterprises sustainability. It reveal that Composition and audit committee reveal to be significantly impacted on the Nigerian insurance enterprises sustainability. The recommendations among others state that all Nigerian companies of insurance ought to have strictly adhered with the codified sound insurance governance of insurance so as to ensure the collaboration between different stakeholders in the insurance industry in order for the performance improvement and efficient growth of the Nigerian insurance businesses. Insurance managerial teams and the adequately viable regulatory bodies should patiently organise and improve on the ethic practices’ governance of corporate and audit committees constituted as well. All insurance firms’ audit committee members in Nigeria should appoint nonexecutive directors who are viable experienced financial accounting background.