As a new semiconductor material with advantages such as large absorption cross-section, long carrier diffusion length, high photoluminescence quantum yield (PLQY), color purity, and adjustable wavelength, metallic halide perovskite materials have been widely used in lighting and displays, solar cells, photoelectric detection, and bio-imaging, to name a few. However, some problems exist in the perovskite materials, such as the low PLQY of blue perovskite quantum dots (QDs), poor stability of red perovskite, and the toxicity of Pb^2+‍, which limits their applications. Doped perovskite materials can help solve the aforementioned problems and further improve their optical/electrical properties. In this paper, the preparation of doped perovskite and the effects of ion doping or substitution at A-site, B-site, and X-site on the photoelectric performance and stability of metal halide perovskite are introduced. Finally, applications of the doped perovskite materials are summarized.