In recent years, the emerging metal-halide perovskite materials have shown the great potential of breaking the technological bottleneck of traditional optoelectronic semiconductors as they enjoy many advantages of both inorganic and organic light-emitting materials, such as large-area preparation by the solution method, easy band-gap tunability, high carrier mobility, and high photoluminescence quantum efficiency. Perovskite light-emitting diodes (LEDs) are regarded as the most promising next-generation lighting and display technology to achieve low-cost, high brightness, large area, and flexible devices. This paper mainly introduces the progress made by our group in perovskite LEDs, summarizes the main strategies to improve device performance, and predicts the development directions of perovskite LEDs.