The present invention discloses a ceramic PTC thermistor element preparation method, which comprises: adopting BaCO3, CaCO3 and TiO2 as main raw materials, mixing with a first semiconducting agent, carrying out wet ball milling for a predetermined time, carrying out pressure filtration and drying, carrying out a pre-burning reaction to synthesize a main material 1, adopting Pb3O4 and TiO2 as main raw materials, mixing with a second semiconducting agent, carrying out wet ball milling for a predetermined time, carrying out pressure filtration and drying, carrying out a pre-burning reaction to synthesize a main material 2, mixing the main material 1, the main material 2, a dopant, a sintering auxiliary agent and the like, correcting the surface temperature parameter by adding a specific amount of a moving agent or adjusting the proportion of the sintering auxiliary agent, carrying out wet ball milling for a predetermined time, and carrying out granulation, forming, sintering, electrode to prepare the finished product. The present invention further discloses the ceramic PTC thermistor element.