The invention relates to an intelligent LNG power generation ship. The intelligent LNG power generation ship is provided with an LNG storage tank, an LNG gasification device, a gas generator set, a gas buffer device, a central control device, a power distribution and transformation device, an emergency treatment system, a ship-shore connection system, a load metering device, a condenser, a BOG heater, a booster pump set, a sea water pump set, a BOG storage device, a liquid phase separation device and a gas metering device. According to the intelligent LNG power generation ship, the real-time parameter data of the demand side can be processed by a central processing unit to accurately control the amount of LNG extracted in an LNG tank and accurately control the amount of seawater extractedby a carburetor or the amount of burned natural gas, thereby achieving stable and reasonable gas supply; the final electricity supply meets the demand and the total amount of fuel does not cause any waste; the waste and environmental pollution generated by burning or air emission caused by the excessive pressure in the buffer tank due to excessively large amount of gasification can be avoided.