Metal halide perovskite materials are a new class of semiconductor materials with unlimited potential. They have the advantages of low cost, high color saturation, narrow half-width (FWHM = 20 nm), adjustable band gap (380~1 000 nm). The study in advantages of high photoluminescence quantum yield (PLQY) and excellent charge transport performance have been extensively researched in various optoelectronic fields and have achieved rapid development, such as perovskite solar cells, perovskite Perovskite light emitting diodes (PeLEDs), perovskite memory, perovskite photodetectors, etc. Since 2014, researchers have firstly observed the electroluminescence of perovskite materials at room temperature, the external quantum efficiency (EQE) of green light, red light and near-infrared perovskite electroluminescent diodes has developed rapidly, and has exceeded 20%. It has reached a level comparable to the mature organic light emitting diodes (OLEDs) on the market. Even the slowest-developing blue PeLEDs have an EQE of more than 10%. This article only briefly introduces the material characteristics, photoelectric properties and research progress of perovskite electroluminescent diodes, so that readers have a better understanding of perovskite electroluminescent diodes.