The invention belongs to the technical field of agricultural mechanical rice direct
sowing and particularly relates to a rice direct
seeder matched with a hand stepping type transplanter power
chassis. The rice direct
seeder comprises the hand stepping type transplanter power
chassis, a main support frame, a beam connecting device, a beam, a dovetail groove type row spacing adjustment device, a seed metering device, an elevation profiling floating plate, an auxiliary profiling floating plate, a profiling floating plate penetration angle regulation device, a furrow opener mounting device, a rice seed storage tray device and a chain
transmission system. The rice direct
seeder has the characteristics of light weight of a
machine body, multistage distance adjustment, strong adaptability to
road condition, economy, efficiency and the like, realizes height adaptability of precision direct
sowing machinery to paddy fields in hilly areas and solves the common problem of non-adjustable row spacing, high cost and difficulty in being adapted to
paddy field operation in hilly areas of the existing precision direct seeder.