Mn4+ doped fluoride luminescent materials show wide application prospects in the fields of improving the color rendering performance of white LED and the color gamut of LCD backlight due to its high efficiency of narrow-band red emission and wide-band blue excitation properties. This review mainly introduces the main preparation methods and effective ways to improve the humidity resistance of Mn4+ doped fluoride red luminescent materials at home and abroad, and makes a prospect for the micromorphology control of materials from the perspective of expanding applications, so as to provide a reference for further research on the application of multi-type optoelectronic devices.