I. Introduction The food processing industry is an important part of the food industry, and it occupies a pivotal position in the national economy. With the development of the economy and the improvement of people's living standards, the development of food processing industry has also attracted more and more attention. So, what exactly does the food processing industry mean? What role does it play in our lives? This article will elaborate on this. 2. Definition of food processing industry The food processing industry refers to the industry that processes agricultural and sideline products to produce food and food-related products. This process includes the handling of raw materials, processing, packaging, and other steps to make a product that is convenient for people to eat and use. These products include a variety of processed foods such as canned foods, beverages, dairy products, condiments, etc. Third, the significance of the food processing industry 1. Improve the added value of food: The food processing industry improves the added value of food through the deep processing of raw materials, so that the original low-value agricultural products are transformed into high-value food, thereby improving the income of farmers. 2. Ensure food safety: Through processing, it can effectively remove harmful substances in agricultural products, improve the hygienic quality of food, and ensure the food safety of consumers. 3. Meet diversified needs: The food processing industry can produce food with various tastes, nutrients and shapes, which meets the diverse needs of consumers. 4. Promote economic development: The development of the food processing industry can drive the development of related industries, such as packaging, logistics, etc., thereby promoting economic growth. 5. Enhance employment: The development of the food processing industry has created a large number of employment opportunities and contributed to the stability and development of society. 4. Challenges and countermeasures of the food processing industry Despite the importance of the food processing industry, it also faces some challenges, such as food safety issues, environmental pollution, etc. In order to solve these problems, we need to strengthen regulation, improve the level of technology, and promote the sustainable development of the industry. Fifth, the future development trend With the advancement of science and technology and the change of consumer demand, the food processing industry is also constantly innovating and developing. In the future, the food processing industry will pay more attention to health, nutrition, convenience and other aspects to meet the needs of consumers. At the same time, green environmental protection and sustainable development will become an important development direction of the food processing industry. VI. Conclusions In short, the food processing industry plays an important role in the national economy and people's lives. It can not only increase the added value of food, ensure food safety, and meet the diversified needs of consumers, but also promote economic development and employment. However, we should also recognize the challenges faced by the food processing industry and respond accordingly. In the future, the food processing industry will develop in the direction of healthier, more nutritious, more convenient and more sustainable.