In ancient farming society, people often carried out trading activities in festivals, religious ceremonies and celebrations to celebrate the harvest, and later gradually developed into large-scale trade and exhibition gatherings with fixed places for the purpose of exchanging goods. This is the earliest form of the World Expo. In the 5th century A.D., Persia held its first exhibition beyond the market function. /kloc-in the 0/8th century, with the continuous emergence of new technologies and products, people gradually thought of holding an exhibition similar to the market, but only for exhibition and not for sale, with the purpose of publicizing and displaying new products and achievements. 179 1 year, the Czech Republic held such an exhibition in Prague for the first time. With the progress of science and technology and the development of social productive forces, the scale of the exhibition has gradually expanded, and the geographical scope of the exhibition has expanded from one place to the whole country, from home to abroad, until it has developed into a world exposition with the participation of many countries. 185 1 year, the world's first world exposition-great exhibition of the works of industry of all nations was held in Hyde Park, London, England. The exhibition lasts from May 185 1 to October 1, and the main contents are world culture and industrial technology. World Expo, referred to as World Expo, is an international Expo, and World Expo (Universal Expo) is the abbreviation of Expo; Also known as World Expo or World Expo) is an international large-scale exhibition organized or entrusted by the host country's government, with the participation of many countries or international organizations, to show human achievements in social, economic, cultural and scientific fields. It is a distinctive forum that encourages human beings to play their creativity and take the initiative to participate. It also encourages human beings to combine science with emotion and present various new concepts, new concepts and new technologies that are helpful to human development to the world. Therefore, the World Expo is known as the "Olympic" event of world economy, science and technology and culture. The venues of the World Expo are not only to display technology and commodities, but also to be accompanied by colorful performances, charming and spectacular scenery and detailed and correct explanations. It is set as a space full of festive atmosphere that cannot be experienced in daily life, and becomes an ideal place for ordinary citizens to entertain and consume. Expo is a gathering of human beings. People gather from all over the world to show their products and skills and brag about their hometown and motherland. The World Expo is a masterpiece of human civilization, so it has unparalleled attraction and makes people feel excited. This kind of party can be traced back to ancient times. As early as the 5th century A.D., Persia held its first exhibition beyond the market function. At the end of the eighteenth century, people gradually thought of holding exhibitions similar to expositions, but they only exhibited and did not sell them. The modern world Expo originated in the middle of the19th century, when the industrial revolution was in its infancy. Up to now, the World Expo has been held for more than 40 times, and it has mainly experienced four stages of development.