PROBLEM TO BE SOLVED: To provide a ride-on type rice-planting machine with an excellent levee crossing property. SOLUTION: A main speed-change operation lever 22 for carrying out an advancement/back operation is provided at a lateral side of an operation handle 12 and a sub speed-change operation lever 21d realizing a super-low speed is provided below the operation handle 12 at a back surface side of a cover part 17b. COPYRIGHT: (C)2004,JPO