Ship's fuel reduction system using energy efficiency optimization for ship's sailing order optimization, and method of the same, and media that can record computer program sources for method thereof

PURPOSE: A fuel saving system for ship using energy efficiency optimization and a method thereof and a recording medium are provided to reduce fuel consumption by operating each of dynamic equipments in an optimal operating condition. CONSTITUTION: A fuel saving method for ship comprises the steps of collecting reference ship specifications in a reference ship specification collecting part(10), collecting reference sailing data in which a fuel consumption rate is measured while changing the sailing condition on standard sailing, generating an optimal RPM calculation module by entering the reference ship specifications and reference sailing data, calculating an optimal RPM by entering schedule condition and sailing condition, and applying the optimal RPM to a ship engine.