Micro-LED is regarded as the next generation of display technology, and luminescence materials are one of the key materials to achieve full color, but there are still great challenges to developing efficient quantum dots and stable small-sized phosphors. In view of the key problems in quantum dots, such as poor stability, low quantum efficiency, and difficulty in balancing the small size and brightness of phosphor materials, this report will introduce the research progress in the realization of controllable material preparation and performance regulation.