The invention discloses an experiment device and an experiment method for analyzing a flowing property of particles in a shearing stress flow field. The experiment device comprises a liquid storage tank, a circulating pump and a spraying nozzle pipe assembly, which are circularly connected through a pipeline in series, wherein the liquid storage tank is internally provided with circulating fluid mixed with experiment particles; the spraying nozzle pipe assembly comprises an inlet section, an acceleration section, a spraying nozzle region, an analysis section and an outlet section; the inlet section is connected with a pipeline of the circulating pump; a large end of the acceleration section is in butt joint with the inlet section and a small end of the acceleration section is the sprayingnozzle region; the spraying nozzle region is connected into the analysis section at the same time; the pipe diameter of the analysis section is greater than the pipe diameter of the spraying nozzle region; the shearing stress flow field is formed on the analysis section; the analysis section is connected with the pipeline of the liquid storage tank through the outlet section. According to the experiment device and the experiment method, disclosed by the invention, a spraying nozzle pipe assembly model capable of simulating shearing stress flow fields with different degrees is adopted, so thatthe difficulty of analyzing and measuring the flowing property of the particles in the shearing stress flow field at present is overcome; a particle image velocimetry (PIV) measuring technology is combined to realize the analysis on the flowing property of the particles in the shearing stress flow field.