The development of the city had a great influence on the economy and culture of the Song Dynasty. Fu Song is economically developed, which has long been a historical conclusion that other dynasties "suppressed business", with the exception of Song Dynasty. In the early Song Dynasty, Zhao Boxin, the great ancestor, said that the idea of attaching importance to the economy was that "the farmland houses in the city should accumulate more money to leave their children and grandchildren to sing and dance in order to enjoy their longevity", and Song Taizong also called it "the skill of making the two systems discuss politics rich". When Shenzong was in power, "managing money first" made the public "managing money first is urgent", which was a guarantee for economic development throughout the Song Dynasty. At the beginning of the Song Dynasty, officials studied the way of managing money and seeking wealth. The Song Dynasty adjusted the traditional practice of attaching importance to criminal law and neglecting civil law in the legislation of previous dynasties, and specially studied and implemented monopoly laws such as salt law, wine law and tea law. The Song Dynasty became one of the most active periods of ancient economic legislation in China, and the economic laws and regulations of the Song Dynasty unified the distribution of interests between the state and economic actors. It was very scientific laws and regulations to conform to the laws and regulations of commodity economy. These correct policy orientations made the commercial tide flourish, and commerce developed rapidly. The earliest paper money (jiaozi) bank appeared in the Song Dynasty, which was unique Even banks can borrow money to pay in different places. Even in modern times, it is a very advanced economic management system. Geographically speaking, the development of Song Dynasty is not limited to old-fashioned areas such as Jiangsu, Zhejiang and Sichuan, but even the social, economic and cultural development of mountainous areas and ethnic minority areas is greater than that of Tang Dynasty. This is also surprising. From the perspective of handicrafts, pits, mines, tea, salt, shipbuilding, sugar, textile and porcelain are all more advanced than those of Tang Dynasty. In addition to the increase in output, the technical improvement is also very obvious. For example, the production technology of "sugar ice" (rock sugar), the excellent excavation of Song porcelain and so on all reflect the maturity and innovation of technology, and the rise of commerce and handicrafts has liberated a large number of farmers who have been captured in the land and put them into commercial handicrafts. In the Northern Song Dynasty, a large number of gold, silver, copper, iron and coal deposits have been mined, and the earliest manufacturing plants in the world have appeared all over the country. Factories such as shipyards, paper mills, printing factories, weaving factories, firearms factories and official kilns all over the country can be seen that the prosperity of handicrafts at that time was unprecedented! As early as the Northern Song Dynasty, China had learned how to make steel by burning coal. The large handicraft industry employed hundreds of full-time industrial workers, while the two military industries of the government employed 8, workers-this is already the scale of heavy industry! In 178, for example, the annual output of the steel industry in North China reached 1.25 million tons, while in 1788, at the beginning of the industrial revolution, the annual output of Britain was only 76, tons. In addition, the mining, metallurgy, paper making, porcelain making, silk weaving and navigation industry was also highly developed, and the Song Dynasty was worthy of being the "high-tech" home before the modern world, and it was the overlord of handicrafts in the world at that time! From the commercial point of view, cities in the Tang Dynasty tend to be administrative centers, while towns in the Song Dynasty tend to be industrialized. The trade areas in the Tang Dynasty are strictly controlled by officials, and the Song Dynasty is more free. Due to the further development of commodity economy, the boundary between residential areas and commercial areas gradually disappears. Some of these "new" cities in the Song Dynasty have developed to a very large scale, such as Kaifeng and Hangzhou, which have reached a population of one million, while the latter. Even in the late Yuan Dynasty, the largest city outside China was "Baghdad", whose population was only between 3, and 5,. Hundreds of years later, Arabian traveler Ibn Betuta called Hangzhou "the largest city in the world"! The population engaged in industry and commerce has gradually increased, the output has increased, and the investment capital has expanded greatly. Therefore, it is not only agriculture that constitutes the main body of national fiscal revenue. The proportion of industry and commerce has surpassed that of agriculture, and advertisements for copper plate printing have appeared in its commercial operation, which is more than 3 years earlier than that of western capitalism. For Su Dongpo, a bachelor, he once wrote an advertising poem for an old woman who cooked oil and made it prosperous. More interestingly, the Song Dynasty also appeared. It is of great significance that the tabloids similar to modern newspapers and the earliest trademarks in history are small, which marks the gradual improvement of the commercialization system in the Song Dynasty. In addition, the famous scholar Shen Kuo wrote < On the velocity of money circulation >: It also reached the level of modern monetary theory, and the strong commercial wave in the Song Dynasty was also the mother of the earliest capitalist bud in the world, while the rapid economic development in the Song Dynasty created unprecedented wealth and prosperity.