Ink droplet observation instrument

The utility model discloses an ink droplet observation instrument, which comprises an observation light source mechanism, the observation light source mechanism comprises a background plate, an optical module and a plurality of electronic switches, a plurality of light holes are arranged on the background plate along a specified direction, the optical module is arranged on a first side of the background plate, and the electronic switches are arranged on the optical module. The light source provided by the optical module can be emitted from the second side of the background plate through the plurality of light holes, the first side and the second side are arranged oppositely, and the plurality of electronic switches and the plurality of light holes are configured, so that the light emitted from the plurality of light holes is in a specific pattern; and the image acquisition mechanism is used for acquiring an image of the moving ink droplet or the static ink droplet radiated by the light rays of the observed li