Fluorescent powder micro-shell combination for highway or bridge or tunnel traffic safety prompting

The invention discloses a fluorescent powder micro-shell combination for highway or bridge or tunnel traffic safety prompting. The fluorescent powder micro-shell combination is composed of a hollow micro-shell and fluorescent powder. The hollow micro-shell is made of glass or quartz. The hollow micro-shell is a white transparent sphere and is composed of two hemispheres with the consistent size. A gap is reserved between the two hemispheres, the two hemispheres are connected together through a center shaft, and inner cavities of the two hemispheres are independent. The fluorescent powder is of a powder body structure, the fluorescent powder with one emission wavelength is packaged in each hemisphere in a closed mode, and the emission wavelengths of the fluorescent powder in the two hemispheres are different. The fluorescent powder is of the powder body structure and packaged in the two hemispheres of the hollow micro-shell of the micro-sphere structure, the fluorescent powder can be well protected by means of