Abstarct: Plant density is regarded as the biggest usable and managerial variable in plant necessities to availability of natural resources. Thus, in order to evaluate the effects and comparison of apply and of micronutrients in different levels of density on some physio-morphological traits, yield and yield components and also qualitative characteristics of sunflower seeds, a field experiment was conducted using iroflor variety in the field research of shahrood university of technology in 1389 the first factor was plant distance on the row in 5 levels (a1=10, a2=20, a3=30, a4=40, a5=50 cm) and 60 cm distance between the rows. The second factor consisted of micronutrients in 2 levels ( b1= not applying of micronutrient, b2= applying micronutrient). The experiment conducted as factorial baxsed on completely randomized blocks in 4 replications. The results indicate that increasing the density resulted in increasing the amount and the period of vegetative growth. Applying micronutrient Couse an increase in stem diameter, anthodium moreover, increasing the plant density had an positive effect on plant mean height and a negative effect on stem diameter anthodium diameter in the 20 cm plant distance on the row an increase was observed in seed yield and biological yield. Through decreasing the plant distance on the row up to 10 cm, plant competition to obtain light and nutrients dramatically increased which resulted in seed yield to decrease and biological yield to increases lightly. On one hand, applying micronutrient through increasing in seed number in anthodium and on the other hand, increasing density through increasing the number of anthodium in the surface unit and decreasing the number of seed in anthodium affected the seed yield. Using micronutrient resulted in improvement of oil percentage and yield. While, density had no significant effect on oil percentage oil yield changes on the surface unit under the effect of micronutrient fertilizer and planting density were completely coordinated with seed yield changes so that the major part of the oil yield changes on the surface unit can be defined by seed yield.