[Objective] To study the biological characteristics of Erythronium sibiricum seeds, so as to provide a scientific basis for domestication and introduction of E. sibiricum. [Method] The biological characteristics of E. sibiricum flowers, fruits and seeds were analyzed by using related literatures and biological knowledge. [Result] The fruit was capsule, 3 arris, fresh fruit grain diameter was 11.0-35.0 mm, longitudinal diameter was 12.0-45.5 mm, fruit weight was 0.5-4.5 g. Dry seed transverse diameter was 1.0-2.3 mm, longitudinal diameter was 1.5-4.0 mm, thickness was 1.0-1.5 mm. Seed maturity period was from the middle of June to late, grain weight was 7.8 g, seeds life force was 93.6%, and the water content was 12.04%, and the seed after 12 h, seed bibulous rate was 70%. Different concentration of seeds that carried liquid leaching significantly inhibited the germination of cabbage seeds and the growth of young roots. Besides, they could restrain the growth of the seed itself to a certain extent. Different drug treatments had no influence on the E. sibiricum seeds. The seed coat was not an obstacle for water absorption, and had obvious dormancy characteristic. The seed dormancy was mainly related with embryos form, late-maturing and inhibition substances of sprouting. [Conclusion] No obstacle about skin absorbing water is found in E. sibiricum seeds, that is, they have good water permeability. Seed coat permeability is not the reason for seed dormancy in E. sibiricum. [Objective] To study the biological characteristics of Erythronium sibiricum seeds, so as to provide a scientific basis for domestication and introduction of E. sibiricum. [Method] The biological characteristics of E. sibiricum flowers, fruits and seeds were analyzed by using related literatures [Result] The fruit was capsule, 3 arris, fresh fruit grain diameter was 11.0-35.0 mm, longitudinal diameter was 12.0-45.5 mm, fruit weight was 0.5-4.5 g. Dry seed transverse diameter was 1.0-2.3 mm , longitudinal diameter was 1.5-4.0 mm, thickness was 1.0-1.5 mm. Seed maturity period was from the middle of June to late, grain weight was 7.8 g, seeds life force was 93.6%, and the water content was 12.04%, and the seed after 12 h, seed bibulous rate was 70%. Different concentration of seeds that carried liquid leaching significant made the germination of cabbage seeds and the growth of young roots. Besides, they could restrain the growth of the seed itself to a cer Tain extent. Different drug treatments had no influence on the E. sibiricum seeds. The seed coat was not an obstacle for water absorption, and had obvious dormancy characteristic. The seed dormancy was mainly related with embryos form, late-maturing and inhibition substances of Sprouting. [Conclusion] No obstacle about absorbing cotton is found in E. sibiricum seeds, that is, they have good water permeability. Seed coat permeability is not the reason for seed dormancy in E. sibiricum.