SYSTEM FOR IMPROVING FUEL EFFICIENCY OF FUEL CELL VEHICLE AND CONTROL METHOD THEREOF

A system for improving fuel efficiency of a fuel cell vehicle, includes a fuel cell that provides driving energy to a vehicle, an information collection unit that collects travel route information of the vehicle including at least one of the altitude, speed limit and traffic condition of the road between the departure and the destination, and a controller that divides the travel route of the vehicle into a plurality of sections through the travel route information of the vehicle collected in the information collection unit, individually establishes the power generation strategy of the fuel cell for the plurality of sections divided, and controls the power generation of the fuel cell according to an established power generation strategy of the fuel cell when the vehicle arrives at each section, and control method thereof.