A zeolite-based catalyst modified with an active catalytic additive of chloroferrate, which is a weakly acidic regulator of the process activity, has been developed. The catalyst exhibits high activity in the process of catalytic cracking of fuel oil with the formationof light gaseous hydrocarbons and a wide range of liquid isomeric and aromatic hydrocarbons. The implementation of the process is accompanied by low coke formation. The use of the studied catalyst under relatively mild temperature conditions certainly allows us to speak about the possibilities for increasing the percentage of light oil products extraction.