Aiming at the problems that in the design of LNG terminal fire protection system,fire water monitor whether to take into account the ship’s fire cooling,and how to set up the cooling water spray system in the tunnel escape and the collecting reservoir,we analyze the necessity of considering the ship’s fire cooling to the fire water monitor in the LNG terminal combining with relevant standard,literature and project experience,give the design basis of scope of the cooling water spray in the terminal tunnel escape,determine the units and values of intensity of water spray,and give the calculation method of the volume of the collecting reservoir.It can provide references for more reasonable design of the corresponding fire protection system,and really play a role in protecting the safety of personnel and property of the wharf.