Abstract: Suaeda glauca is a potential forage resource in north saline-alkaline grasslands where enrichment with some mineral elements increases the risk to livestock of excess of some minerals but deficiency of others. The effects of supplements with 0%, 25%, 50% of S. glauca hay in diets on mineral elements in muscle, heart, liver and kidney tissues of lambs was studied. Calcium content in muscle decreased significantly (P<0.05) with S. glauca hay while copper also decreased but iron increased, although the statistical differences were not significant. Iron and copper contents in liver showed a similar trend to that in muscle tissue. There was no significant difference in mineral element contents of heart and kidney tissues. Therefore, the short-term feeding of S. glauca hay has no obvious adverse effects on mineral element accumulation in various tissues of lamb, but for long-term feeding, the risk of iron overload and lack of calcium and copper should be considered.