▎ 摘　　要

NOVELTY - Controllable preparation of orderly arranged lead sulfide quantum dots involves preparing lead sulfide sol, dripping lead sulfide sol on the center of a two-dimensional planar material with a grid structure as a substrate, then homogenizing, drying the substrate, and repeating above process 5-12 times. USE - Controllable preparation of orderly arranged lead sulfide quantum dots. ADVANTAGE - The method enables controllable preparation of orderly arranged lead sulfide quantum dots with uniform particle size distribution and special arrangement, by simple process.