Anthurium flower is one of the most beautiful and the most expensive flower in the tropical region, which is ranked second in terms of production in the world market after the orchid, and it's cultivation in recent years has become common in Iran. Flower quality and quantity are important in the process anthurium flowers production. One of the factors influencing the quality and quantity of this flower is the optimum nutrition of the plant. Although silicon is not considered as a mineral element in the plant, reports show its beneficial effects on the growth of plants, improving the quality and quantity of cut flowers. The purpose of this study was to investigate the effect of silicon nutrition in increasing the quality and quantity of anthurium cut flowers. Experiment was conducted in a randomized complete block design with 5 treatments and 5 replications, each replicate included 3 plants. Treatments included sodium silicate in three concentrations (0, 25 and 50 mg / l) and silicon-histidine aminocalate at three concentrations (0, 25 and 50 mg / l). Some morphological traits such as number of flowers, peduncle length and some physiological traits were measured such as total chlorophyll, concentration of spathe soluble sugar and concentration of some leaf and spathe elements and vase life. The results showed significant differens between different treatments in terms of flower number, peduncle length, total chlorophyll concentration, spathe soluble sugar concentration and vase life at 5% probability level. silicon-histidine amino chelate with 25 mg/l concentration improved increased the number of flowers by 23.5% compared to the control. With 50 mg/l concentration silicon-histidine amino chelate also improved the peduncle length, total chlorophyll, and the amount of carbohydrate in the spathe solution. In this study, treatment with 50 mg / L of silicon-histidine amino chelate resulted in an increase of 12.8%, 15.5% and 23.8% of peduncle length, total chlorophyll, spathe soluble carbohydrate concentrations compared to control. It also improved 12.7% of vase life compared to control. 50 mg / L sodium silicate increased 12.6% and 17.5% concentration of calcium in leaves and spathe, respectively of course, in almost all measured traits, there was no significant difference between treatment of sodium silicate and silicon-histidine amino chelate was not observed. In general, it can be stated that silicon-histidine amino chelate at 50 mg / L is recommended to improve the quality and concentration of 25 mg / L is suitable to improve the quantity of anthurium flowers. Keywords : anthurium, sodium silicate, silicon-histidine amino chelate, morphology, physiology, vase life