In the backdrop of several recent accounting crises, internal auditing has emerged as a major force in supporting effective controls and risk management. Therefore, internal auditing of the supply chain management performance is one of the strongest and quickest ways to reduce operational costs and provide the company competitive advantages in the global market in times of economic crisis. The purpose of this study was to examine the role of internal audit in improving supply chain management in shipping companies, the questionnaire was used to suit the nature of this study. Also, the survey included 167 participants of these companies. The results indicated a statistically significant relationship between the internal audit (independence and objectivity of internal audit, efficiency of internal audit and internal audit quality) and supply chain management in shipping companies.