<p>Lead halide perovskites exhibit great potential for applications in perovskite light-emitting diodes (PeLEDs) due to their excellent optoelectronic properties. However, lead's toxicity and environmental unfriendliness severely hinder their commercialization. Tin-based perovskites are considered the most promising alternatives because of their similar electronic configurations, environmental friendliness, and ideal optoelectronic properties. The present review methodically summarizes the progress in extant research on tin-based perovskite materials in the past years. First, the fundamental structure and optoelectronic properties of tin-based perovskites are introduced, and an in-depth analysis of the inherent challenges is provided. The primary focus was on elucidating the latest advancements in Sn²⁺ oxidation inhibition, defect density reduction, and enhancement of film quality and luminescent performance. This objective was achieved through a series of strategies, including composition regulation, dimension engineering, additive engineering, and optimization of thin film preparation processes. Next, an overview of the performance evolution of PeLEDs is provided. Finally, we provide an outlook on the challenges faced in this field and future development directions, aiming to serve as a valuable reference for the further development of high-performance, stable, and environmentally friendly tin-based PeLEDs.</p>