Proposed is a method for manufacturing aviation fuel, the method including preparing a feed, preparing an FT syncrude by subjecting the feed to a Fischer-Tropsch (FT) reaction, wherein the FT syncrude includes a first fraction and a kerosene fraction, the first fraction being a fraction with a boiling point range below that of kerosene, and the total content of the first fraction and the kerosene fraction in the FT syncrude being equal to or greater than 85 wt %, subjecting the first fraction to a reaction for increasing the boiling point, wherein the first fraction is converted to the second fraction, and the second fraction has a higher boiling point than the first fraction, and collecting aviation fuel from the kerosene fraction and the second fraction.

As a hydrocarbon production system that synthesizes hydrocarbons using water and carbon dioxide as raw materials, a hydrocarbon production system capable of producing hydrocarbons by securing hydrogen and carbon monoxide required for hydrocarbon synthesis is provided. In a hydrocarbon production system that produces hydrocarbons from at least water and carbon dioxide, the hydrocarbon production system includes at least an electrolytic reaction unit, a reverse water-gas shift reaction unit, and a hydrocarbon synthesis reaction unit.