The invention discloses a method of using renewable raw materials to prepare jet fuel. The method includes: in a hydrotreating reaction area, after being mixed with hydrogen and water, enabling vegetable oil and/or animal fat to contact with a hydrotreating catalyst for reaction to obtain a hydrotreating reaction product; in a hydrogenation isomerization pour point depression reaction area, enabling the hydrotreating reaction product to contact with a hydrogenation isomerization pour point depression catalyst for reaction to obtain a hydrogenation isomerization pour point depression reaction product, wherein a hydrogenation isomerization pour point depression area A and a hydrogenation isomerization pour point depression area B which are in serial connection are arranged in the hydrogenation isomerization pour point depression reaction area; in a hydrogenation refining reaction area, enabling the hydrogenation isomerization pour point depression reaction product to contact with a hydrogenation refining catalyst for reaction to obtain a hydrogenation refining reaction product, and separating and fractionally distilling the hydrogenation refining reaction product to obtain the jet fuel. By adopting the method, the jet fuel is high in yield and low in freezing point.