Alisma plantago seeds have some difficulties for mechanical sowing because of small, irregular and shrunken shapes. Thus it was intended to make seed pelleting for Alisma plantago seeds to solve these problem. The main object of this study was to find the best materials for Alisma plantago seeds pelleting. The most desirable shapes which provide a spherical and smooth surface of the pelleted seeds that enhance mechanical singling was made from the mixture of SDZ+DE+CA 0.4%. The pelleted seeds were easily broken after absorbing water and the germination rate of those was 95.3% in lab.