<p>As the food industry expands and consumer demand for safe, high-quality food grows, intelligent food packaging systems are gradually becoming a key technological development direction for the sector. By integrating smart indicators, the system can monitor key information such as freshness, temperature, authenticity, and other key information of food in real time, providing consumers with a better experience while ensuring food quality and consumer health. This paper reviews the application of key printing technologies such as gravure printing, screen printing, inkjet printing, and 3D printing in the preparation of smart food packaging, and analyzes the technological processes, advantages, challenges, and future development trends of these technologies in detail. Firstly, starting from the principle and characteristics of printing technology, the application potential of various technologies in intelligent packaging is expounded. Secondly, the specific application of the intelligent packaging system in food packaging was discussed in depth from the aspects of sensors, indicators, and data carriers. Finally, the challenges faced by the current intelligent packaging system in terms of technology maturity, cost, and stability were pointed out, and the future development direction was proposed, such as technology optimization, standardization construction, and market promotion. The intelligent packaging system based on printing technology has broad prospects in the field of food safety monitoring. With the continuous innovation and breakthrough of this technology, such systems can not only significantly improve the level of food safety but also contribute to reducing food consumption.</p>