The utility model discloses a catalytic cracking feed nozzle, aiming to solve the problems of the existing nozzle such as larger atomized particle size, overhigh spraying speed and uneven atomization. The catalytic cracking feed nozzle is provided with a magnetizing mechanism and an atomizing mechanism, wherein the magnetizing mechanism is arranged at the front end of a feed pipe of the atomizing mechanism, the atomizing mechanism is provided with a nozzle body, a secondary steam inlet is arranged on the nozzle body, a spray head is arranged at the outlet end of the nozzle body, the other end of the nozzle body is sequentially connected with an eddy flow section taper pipe and an eddy flow section circular pipe which are coaxial with the nozzle body, primary steam distribution pipes are coaxially arranged in the nozzle body, the eddy flow section taper pipe and the eddy flow section circular pipe, a secondary steam distributor is arranged on an oil/gas pipe, at least a circle of steam distribution holes inclined towards the spray head is arranged on the primary steam distribution pipes, a cone head pipe and the secondary steam distributor, and the secondary steam distributor, the oil/gas pipe and the nozzle body form a secondary gas chamber.