Twenty-four solar terms (24 solar terms) are the knowledge system and social practice formed by China people by observing the annual movement of the sun and recognizing the changing laws of seasons, climate and phenology in a year. They are the products of ancient agricultural civilization and have guided Chinese traditional agricultural production and daily life for thousands of years. Twenty-four solar terms are China people's world outlook, which reveals and refines this orderly ecological change law in a year.

As the main political, economic, cultural and agricultural activity centers in China are mostly concentrated in the Central Plains of the Yellow River Basin in history, the 24 solar terms were established based on this area. As far back as the Spring and Autumn Period, the ancient sages of China set four solar terms: midsummer, midsummer, midsummer and midwinter, which were continuously improved and perfected. By the Qin and Han Dynasties, the 24 solar terms had been completely established and became a supplementary calendar used to guide farming in ancient China. In the international meteorological field, the 24 solar terms are known as "the fifth invention of China".

The intangible cultural heritage of the twenty-four solar terms is very rich:

It includes related proverbs, ballads and legends, as well as traditional production tools, daily utensils, handicrafts, calligraphy and painting, as well as festival culture, production ceremonies and folk customs closely related to festivals. Twenty-four solar terms beautiful picture, twenty-four solar terms GIF animation design, twenty-four solar terms food map. As for saying that there is no "fullness" because it does not conform to the wisdom of the ancients, it is sheer nonsense.