Food is paramount to the people. The food issue has always been a top priority for the Party and the government. In the report of the 20th National Congress of the Communist Party of China, "food security" appeared many times. We should "consolidate the foundation of food security in an all-round way, fully implement the responsibility of the Party and the government for food security, firmly hold the red line of 1.8 billion mu of arable land, gradually turn all permanent basic farmland into high standard farmland, deeply implement the seed industry revitalization action, strengthen agricultural technology and equipment support, improve the income guarantee mechanism for grain farmers and the benefit compensation mechanism for major production areas, and ensure that the Chinese people's jobs are firmly in their own hands". The attitude and determination to deal with the problem of food waste will ensure that the Chinese people's jobs are firmly in their own hands. Saving is the best respect for harvest, and "CD" is the best respect for food. A gruel and a meal are hard won, and a little bit of perseverance is hard to come by. Over the years, "CD-ROM Action" has gradually become people's consciousness, and strict economy has increasingly become a social consensus. Many catering enterprises also actively responded by introducing service measures such as ordering "half dishes" and supporting packaging, which significantly reduced the "waste on the tip of the tongue". More than 1.4 billion people need to eat, which is China's biggest national condition. Today, we have achieved great material enrichment, with bumper harvests and abundant stocks. In particular, in recent years, various foreseeable and unpredictable risks, challenges and even violent waves have emerged. China's grain harvest has been bumper year after year. This year's summer grain production has still increased, and the autumn grain harvest is in sight after overcoming multiple challenges. At present, changes in the world, times and history are unfolding in an unprecedented way, and mankind is facing more unknown challenges. Ensuring food security is an eternal topic, and we should not be careless at any time. We need to open source, but also reduce expenditure. At the same time, the long-term mechanism and supervision and management are also increasingly improved in combination with the actual situation in various regions, and there is an inexhaustible institutional power to control catering waste. Let "CD" become a conscious life habit, and let simplicity become lasting