Compared with the coastal port,vessel mooring operation in inland harbor is influenced more obviously by current.Due to the geographical environment,the current flow always occurs in the inland harbor.Vessel motion is introduced as the controlling conditions to meet the requirements of ship’s mooring operation.Then,based on the mooring simulation,various limiting conditions are analyzed,especially the limited current conditions.The limiting conditions of wave,wind speed and current under vessel motion are not mentioned in norms when the vessel moors at berth.The research results may provide theoretical reference for relevant vessel berthing operations in inland harbor.