The utility model discloses a liquid sowing machine. The liquid sowing machine comprises a seed box, wherein seed discharging pipes which are arranged at the lower part of the seed box are connected with seed guiding pipes, and a piston mechanism is arranged between the seed discharging pipes and the seed guiding pipes; drippers are arranged at the tail ends of the seed guiding pipes, and seed paper is arranged below the drippers. The liquid sowing machine disclosed by the utility model is combined with a seed paper technique, so that small seeds can be directly suspended into a special solution, can be accurately sowed on the seed paper through a sowing device, and can be better stored and accurately sowed.