The present invention discloses an atomizer having an atomization cavity arranged in an atomization core bracket. The atomizer comprises a shell, a suction port is formed in the suction
nozzle end of the shell, a suction port
pipe is downwards and integrally formed at the suction port, an opening is formed in the connecting end, a bottom cover is arranged at the opening to block the opening, and the connecting end can be connected with a battery
assembly to form electronic atomization equipment. An atomization
assembly is connected between the suction port
pipe and the bottom cover, a
liquid storage cavity is formed between the atomization
assembly and the inner wall of the shell, the atomization assembly comprises a throttling cover and an atomization base which are connected up and down, cavities are formed in the throttling cover and the atomization base and used for installing an atomization core, the atomization core comprises a support, a heating piece and a liquid guide plate, and the support comprises a
support plane and a support wall. The support wall is vertically arranged on the periphery of the lower portion of the
support plane, the lower portion of the
support plane and the support wall define an atomization cavity, an atomization through hole leading to the atomization cavity is downwards formed in the support plane, the heating piece is arranged on the support plane and the atomization through hole of the support plane,
electrode leads are arranged at the two ends of the heating piece, and a liquid guide plate is tightly attached to the heating piece.