Proper development of the north channel will reduce the navigation pressure of the south channel, smooth the Yangtze waterway, and broaden the coastline application at the Yangtze estuary. By analyzing the development conditions of the north channel, we research the development scale and schedule of it. It is concluded that at the present stage, we may regulate the north channel and construct a 5 000 DWT channel with the natural water depth so as to reduce partially the navigation pressure; In the near future, we can develop the 8m-deep-water channel and realize navigation of 20 000 DWT ships; As for the mid & long term, we shall regulate the north channel comprehensively and develop a 10 m-deep channel to satisfy the navigation of 30 000 DWT ships.