PROBLEM TO BE SOLVED: To provide a direct sowing machine provided with a seed delivery device to drop a definite quantity of seeds to a field with definite timing and having improved maintainability in cleaning of a delivery rotor, etc.SOLUTION: The direct sowing machine includes a seed tank 5 for storing seeds to be sowed on the field, a delivery roll 19 having seed grooves 19b to receive seeds and transfer the seeds stored in the tank 5, a seed guide 41 to prevent falling down of the seeds from the rotor 19, a drop controlling member 42 to deliver the seeds transferred by the rotor 19, and a cleaning brush 23 to uniformize the quantity of the seeds in the seed groove 19b. The seed guide 41, the drop controlling member 42 and the cleaning brush 23 are attached to a supporting member 50 in an integrally removable manner to facilitate maintenance in the direct sowing machine.
