Luoyang in the early Tang Dynasty, business is also very developed, there are south, north and west of the three cities. South city that is sui fengdu city, occupying the area of two square, "its one hundred and twenty lines, more than three thousand restaurants, four walls have more than four hundred stores, goods and bribes mountain accumulation". West City that is the Sui Dynasty Datong City, around four miles, "which has a hundred and forty-one areas, capital goods 66 lines", more prosperous business than the Sui Dynasty. Generally speaking, the commercial center of gravity in the early Tang Dynasty was still in the Yellow River basin, such as Bianzhou along the Tongji Canal, "the main point of the world, the total of the prosperity of the boats and trucks, the control of the throat of the river and the Shuo, through the Huaihu Lake of the canal". Songzhou, on the other hand, has "90,000 houses in the Eup, with tall buildings illuminating the thoroughfares; half a day's worth of boats and carts, and a lot of entertainment for the hosts and guests", and is an important commercial city in the north. Similar to this, there is also the Yongji canal Weizhou and Beizhou, is the commercial city in Hebei.