Researchers at Zhejiang University have pioneered the world's first electrically driven perovskite laser, marking a significant advancement in the field. Their groundbreaking work has been featured in the esteemed journal Nature. This innovative laser employs a unique "dual-cavity" design, seamlessly integrating a low-threshold perovskite single-crystal microcavity with a high-power microcavity perovskite LED. This fusion results in an impressive coupling efficiency of up to 82.7%. Remarkably, its threshold current stands at a mere 92A/cm², substantially lower than that of current organic semiconductor lasers, underscoring its superior stability and swift modulation capabilities of 36.2MHz. This achievement not only eliminates the reliance of optically driven perovskite lasers on external light sources but also paves the way for their expansive applications in diverse domains such as on-chip data transmission, computing, and biomedicine.