Currently, materials innovation is undergoing a paradigm shift from "composition-driven" to "cross-scale order-driven" design. In this context, the construction of supracrystals through the self-assembly of colloidal nanocrystals represents a core pathway toward achieving programmable properties and advancing this transformative paradigm. Our group focuses on the precise assembly and functional design of supracrystal materials. By synergistically controlling entropy and enthalpy, we aim to create specific, directional interactions between building blocks — from both the ligand and nanoparticle core perspectives. Through the development of general and efficient directional assembly methods, we strive to achieve the controllable construction of novel supracrystals and drive their breakthrough applications in optics, mechanics, catalysis, energy storage, and beyond.