Method for analyzing particles deposited on filter disc and sample preparation and analysis equipment thereof

The invention discloses a method for analyzing particles deposited on a filter disc and sample preparation analysis equipment thereof, which comprises the filter disc, the particles, a background, ionic liquid, a device for automatically analyzing the particles deposited on the filter disc and an optical microscope, and is characterized in that the filter disc mainly comprises a filter membrane, but also comprises an adhesive carrier layer, such as a settlement point for use; the particles comprise black particles, white particles, transparent particles and gray particles, the backgrounds are divided into two groups, namely a light white first background and a light black second background, and the light black background and the light white background are divided into two grades according to the color depth. According to the method for analyzing the particles deposited on the filter disc, the filter disc with increased light transmission can be used for optical analysis, because the filter disc with increased