Atomizing core preparation method, atomizing core and electronic cigarette atomizer

The invention is suitable for the field of electronic cigarette atomizers, and provides an atomizing core preparation method, an atomizing core and an electronic cigarette atomizer. The atomization core preparation method comprises the steps that S1, a ceramic substrate is prepared, and the upper surface of the ceramic substrate is divided into a plurality of grid areas arranged in rows and columns; s2, electrode slurry is printed or sprayed in each grid area, the electrode slurry is sintered to form two electrodes, and the two electrodes 20 are enclosed to form an atomization surface; s3, spraying a heating film on the atomized surface to form an atomized substrate; and S4, the atomization base body is cut along the edge of the grid area, and the atomization core is formed. According to the atomization core preparation method, the influence of electrode preparation on the formed heating film can be effectively avoided, the atomization effect of the atomization core is improved, and the preparation cost of th