Small -size paddy planter is used in experiment, including the seed box, conveying pole, planting box, ditching wheel, earthing device, telescopic connection pole, telescopic link and depth control wheel. Planting box fixes the core wheel department at the ditching wheel, and two sets of planting box pass through the telescopic connection pole and connect. Telescopic link one end is fixed on the telescopic connection pole, and the other end is connected with the depth control wheel. The earthing device is fixed at the lower extreme of conveying pole and is in the inboard that the ditching was taken turns. The utility model discloses simple structure leans on the people to promote to advance, sows seeds in the ditching, and earthing afterwards can be guaranteed the accuracy of seeding to have improved efficiency in addition greatly, can be used for the different width and the degree of depth of difference to sow, and is very suitable in the use of the experimental plot of small size.