Since the protective coating on easy-open ends frequently encounters challenges like bubbling, fissures, and delamination during the drying process, the work aims to study the temperature rise characteristics of easy-open ends in the drying furnace. By combining on-site experiments and numerical simulations, the thermal distribution within the furnace and the surface temperature variations of the easy-open ends were measured. Subsequently, based on CFD simulation technology, a dynamic mesh model was employed to intricately replicate the thermal evolution experienced by the moving easy-open ends inside the furnace. Additionally, dynamic boundary conditions were employed to meticulously calculate the surface temperature distribution of each individual easy-open end. The temperature change in the drying furnace was characterized by an initial temperature increase followed by a subsequent decrease, mirroring the motion of the easy-open ends and there were prominent temperature drop regions on both sides of this trajectory. The thermal transformation experienced by the easy-open ends within the drying furnace could be divided into three phases of rapid heating, gradual heating, and swift cooling. Under three distinct drying furnace temperature settings (125 °C, 130 °C, and 135 °C), the maximum surface temperature of the easy-open ends progressively reached 148 °C, 152 °C, and 155 °C, respectively, indicating a direct correlation between higher temperature and increased bubble formation in the coating. During the initial heating phase, there was a notable temperature difference across the surface of the easy-open ends, peaking at 5 °C, which gradually diminished to below 1 °C in later stages. The simulation results were consistent with the experimental data, with an average MRE of just 0.1. This comprehensive study not only obtains the thermal characteristics and optimal heating conditions for easy-open ends within the drying furnace but also establishes the groundwork for CFD simulation approach of easy-open end motion heating grounded in a dynamic mesh model, providing invaluable guidance in the design and operation of drying furnaces.