To provide a machine for direct sowing in a flooded lowland field, which is capable of preventing a power-transmitting part from being made dirty by mud spattered from a field.

The machine 30 for the direct sowing in a flooded lowland field directly sows paddy rice seeds on the field, and includes a sowing device 40 having a feeding part 42 for feeding the seeds, and a trencher 50 for making a groove in the field. The sowing device 40 is constituted so that the power for enabling the feeding part 42 to carry out the feeding operation may be transmitted through the power-transmitting part 35, and the trencher 50 is constituted so that a groove-making plate 51 of the trencher 50 may be positioned under the power-transmitting part 35.