The invention discloses a measuring method for distribution characteristics of liquid phase between droplets and wet particles in a liquid sprayed gas-solid fluidized bed. The measuring method is characterized in that: a layer of reversible thermochromic coating is coated on the surface of the particles by a spraying method; the liquid spraying and particles fluidization process are simultaneouslyshot by combining a high-speed camera with an infrared thermal imager; dry particle groups, droplet groups, and wet particle groups are effectively distinguished and dynamically identified based on the characteristic that the thermosensitive coating on the surface of particles can change color reversibly with temperature and the different imaging characteristic of dry particles, droplets and wetparticles in the high-speed camera and the infrared thermal imager; and the liquid phase distribution characteristics are obtained by comparison calculation. According to the measuring method for theliquid phase distribution characteristics in the liquid sprayed gas-solid fluidized bed provided by the present invention, the liquid phase distribution information in the liquid sprayed gas-solid fluidized bed can be obtained conveniently, accurately, and in real time.