Abstract: The experiment is conducted on the germination and some physiological indices of three breeds of rice seed named Xiannong NO.10,Xiannong NO.20 and Xiannong NO.40 under the stress of copper.The results indicate that there is no significant discrepancy in germinability and germination percentage of the three breeds,because their germination mainly depends on self-nutrition.The rice seedling growth including the content of chlorophyll,protein,root vitality,biomass,plant height and root elongation,is restrained under the stress of copper concentration,the higher concentration,the more restraint action.The content of chlorophyll and protein as well as root vitality is restrained by 10mg/L copper,and the significance level is 0.01 and 0.05 respectively.There are obvious differences among the three breeds of the seedling growth,taking biomass and plant height as evaluation index.So the experiment result of the specific breed can not be applied to the other breeds directly.