The industrial entities has been facing challenges in the external environment, such as competition, globalization, and the high costs of raw materials needed for production, which has led to higher production costs and consequently high unit costs per product as well as the apparent scarcity of most resources and the difficulty in obtaining them. This has led to the inevitable introduction of systems with the aim to keep pace with such rapid developments, such as the rapid response manufacturing system, which is a Japanese-originated system that was introduced by Toyota, which has already employed the application of this system to meet customers' demands and the rapid response to the technological developments and competition pressures. The factories are obliged to deliver products to their customers as fast as they can, which means gaining a competitive advantage and increasing their market share. The standard of delivery is defined as the ability of operations to deliver the contracted product to the customer on time and specified avenue .It is an effective solution for factories that cannot achieve a competitive advantage in the field of cost reduction or the quality field as they can inevitably achieve this by reducing Lead Time in its operations and then work to reduce delivery times and this is the basis on which the modern production system is represented (the rapid response manufacturing system), which urges factories to compete on the basis of the fastest date for delivering the product to customers. The problem: 1. What are the problems of production planning facing the ready-made garment factories in Medina Al-Menorah? 2. What is the relationship between QRM and production planning? 3. What is the applicability of the QRM system? 4. What is the effect of applying the QRM system on production planning in the study sample ready-made garments factories? Objectives: 1. Determining the problems of production planning facing the ready-made garment factories in Medina Al-Menorah. 2. Studying the relationship between the quick response manufacturing (QRM) and production planning. 3. Applying the quick response manufacturing system (QRM) in the sample study factories. 4. Measuring the effect of applying the quick response manufacturing (QRM) system on production planning in the study sample factories.Methodology: The experimental approach: To measure the effect of the quick response manufacturing system on production planning in the ready-made garment factories in Medina Al-Menorah. Results: - The quick response manufacturing system (QRM) affects the production planning in the ready-made garment factories in Medina Al-Menorah and the degree of impact was significant, which shows the validity of the fourth hypothesis of the study.