The invention discloses a catalytic cracking method. In the method, a regenerated catalyst from a cooler is divided into two ways, one is fed into a tubular reactor through a first regenerated catalyst transportation tube and is mixed with raw material oil, which is fed through a material feeding nozzle, and is subjected to a contact reaction, and the other one passes through a heat remover and is fed into the tubular reactor through a second regenerated catalyst transportation tube. The distance between the two inlets that the two ways of regenerated catalyst enter the tubular reactor is 1/3-2/3 of the total length of the tubular reactor. The reacted material flow enters a precipitator for performing solid-gas separation, wherein separated oil gas generated in the reaction is subjected to fractionation in a fractionation system. Separated to-be-regenerated catalyst is subjected to burning regeneration through a burner and a tubular burner, wherein the regenerated catalyst can be recycled after being cooled. By means of the method, the content of olefin in gasoline can be reduced by 10-20% by volume and the octane number (RON) of the gasoline can be increased by 0.1-0.5 units.