Granularity performance detection method, detection device and detection system

The invention provides a particle size performance detection method, device and system, and the detection method comprises the steps: carrying out the particle size test of a sample, and obtaining the particle size data of particles in the sample; dividing a plurality of particle size distribution intervals according to the particle size data, and calculating a probability density value of each particle size distribution interval; a density distribution characteristic graph is generated according to the probability density values and the particle size distribution intervals, the density distribution characteristic graph comprises at least one graph group, one graph group comprises a plurality of graphs connected in sequence, the graph groups correspond to the samples one to one, and the maximum width of one graph corresponds to one particle size distribution interval of the sample; the graph attribute of one graph correspondingly represents the probability density value of one granularity distribution interva