It is important to pay attention to improving and developing the quality of health services provided in hospitals, and this study seeks to clarify the impact of quality costs according to the FOCUS-PDCA model to improve the quality of health services and develop them to achieve high quality satisfaction for community members from the health services provided to them. The study concluded that the quality costs are those that are specifically consistent with the achievement or lack of achievement of the quality of the product or the quality of service. The FOCUS-PDCA model is a common quality approach that can be used in many social and health care organizations. The model works well in many areas of improvement and only needs to create a multidisciplinary team. There is potential for implementation of the FOCUS-PDCA model through Deming's philosophy of quality improvement. The study recommends focusing on quality costs and writing reports for these costs and classifying them into four categories: prevention costs, evaluation costs, costs of internal failure, and costs of external failure. And the need to use the FOCUS-PDCA model according to the fourteen points of Deming by linking with the costs of quality contributes to preventing the costs of internal failure and the costs of external failure at Al Karama Teaching Hospital to improve the quality of health services. Attention must be paid to the inclusion of doctors and other medical personnel in training and qualification courses and the use of the Internet in terms of speed of response to information and the ease of receiving and sending it.