Evaluation of the influence of fraction by sieves of lovage seeds (Levisticum officinale Koch.) on their quality - weight, germination capacity and vigor was the main aim of the experiment. It was ascertained that there was no impact of seeds fraction on the seeds germination rate: MGT, T25 i T50. The size of seeds, depending on the year, had an influence on the percentage of germinating seeds (maximum germination, Gmax), germination capacity as well as the amount of deformed and diseased seedlings, healthy non-germinated seeds and dead seeds. There was a visible decrease of seed quality in the third year of their storage comparing to seeds preserved in shorter time. There was an elongation in the time of seeds germination (MGT, T25 i T^) and a decrease of Gmax. Deterioration of their quality referred also to the germination capacity which drastically diminished mainly due to the decrease of dead seed number.