The reflective part of the reflective vest is made by the advanced technology of focusing and post-processing by using the micro-diamond crystal lattice to produce refraction and high refractive index glass beads retro-reflective principle. It can reflect the distant direct light back to the luminous place, and has good retroreflective optical performance no matter in day or night. Especially at night, it can display the same high visibility as during the day. Safety clothing made of this high-visibility reflective material can be easily spotted by night drivers regardless of whether the wearer is in a remote place or under the interference of light or scattered light.