Micronutrients have an important role in yield and healthy development of animals. Yield decrease and some illness can be observed in the animals, nourished with micronutrient absent forages. In the present study, it was aimed to determine the effect of over-seeding and micro fertilizing on micro element content of grass in rangeland. The research was designed according to a split plots in randomized block design with three replicates. Seeding (unseeded and over-seeded) was utilised as main plots; three doses of N and P (0, 6 and 12 kg da-1) and two doses of K (0 and 8 kg da-1) were utilised as sub-plots in combinations during two consecutive years. According to the results, over- seeding has no effect on micronutrient content of grass. Fe (230-1080 mg kg-1), Mn (72.88-158.51 mg kg-1), Zn (24.97-32.75 mg kg-1), Cu (26.72-29.32 mg kg-1), Na (1.72-5.45 g kg-1) and Cl (36.49-45.51 g kg-1) contents of grass from different fertilizer applications were found to be higher than the need of grazing animals. Se content of grass varied with 0.074-0.094 mg kg-1 depending on fertilizer doses and was found to be unsufficient to meet Se need of grazing animals. Our results showed that the acid-base balance of grass has risk in terms of the animals in last period of pregnancy and dry period. When compared to micronutrient content of families, it was observed that Fe, Mn, Zn, Na and Cl contents of plants from other family plants were higher and legumes were superior over in terms of Cu and Se contents.