Abstarct: Nutrition is an important factor in improving the quality and quantity of crop. In the meantime Silicon is an useful element for rice and it has positive effects on quantitative and qualitative characteristics. Salicylic acid is a hormone plant that is known as a plant growth regulator and has an important role on the growth and yield. In order to evaluate the effect of foliar application of spraying silicon and salicylic acid on quantitive yield and qualitative characters in rice (Shiroodi cultivar), a field experiment design in Rice Research station (Amol) in 2014 as a factorial randomized complete block design with three replications. Treatments consisted of silicone spraying source of potassium silicate in three levels of 0, 3, 6 cc/l as the first and salicylic acid spraying in four levels including control 0, 0.5, 1, 1.5 mM as the second factor. Sampling was done in two stages of flowering and physiological maturity. The results showed that silicon spraying also increased on dry weight of leaf, the amount of phosphorous and potassium seed and decreased number of unfilled grain per panicle. also salicylic acid spraying increased of dry weight of leaf, dry weight of stem, dry weight panicle, total dry weight, panicle length, number of filled grains per panicle, nitrogen seed and decreased number of unfilled grain per panicle , improve grain yield. The amount of salicylic acid at a level of 0.5 mM also showed the greatest effect on all parameters So that yield at this level increased 17.66 % as compared to controls.