Since the trial operation of the 12.5 m deep water channel below Nanjing of the Yangtze River，the maintenance and dredging volume of the Fubei channel is large，and the contradiction between the channel maintenance and dredging and navigation is prominent. Meanwhile，the Fuzhong channel is in the trend of scouring development，which has the basis for further widening. Aiming at the problem that whether the plan of broadening the Fuzhong channel to 420 m satisfies the safe intersection of representative ship types，we carry out the ship maneuvering simulation test to analyze the safe distance and track width of the ship intersection under different working conditions. The research results show that the 420 m navigation width scheme of Fuzhong channel can satisfy the two-way navigation of 150，000 DWT and below under the condition of spring tides in the flood season and dry season.