Rose ( Rosa hybrida ) from the Rosaceae family, is the most important cut flower in the world. Short vase life is one of the major problems of cut flowers. Therefore applying methods which maintain flower quality and vase life are of importance. The aim of this study was to investigate the effect of Silver nanoparticles, Calcium nanoparticles and Silica nanoparticles and in comparison with their large particles (Silver thiosulphate, Calcium chloride and potassium silicates) on the vase life of Rosa Dolce Vita . This study was randomized complete block design with 5 separate experiments. In esfahan university of technology’s horticultural science lab were done during the years 2011-2012. Traits such as Vase life, Relative fresh wight, Solution uptake, leaf relative chlorophyll content, Chlorophyll fluorescence index, Flower diameter, pH maintenance solution and ion leakage measurements and were companded. First and third experiment was factorial. The second, fourth and fifth experiment were conducted as split plot in time. The third, fourth and fifth experiment the pulsed for 12 hours were performed. 4 replicates were used in all experiments. First experiment with 4 treatments (Concentrations 5, 10 and 15 mg/l each of nanomaterials with control) continuously and second experiment with 4 treatments ( Concentration 15 mg/l each of nanomaterials with control). The pulse duration on 12 and 24 hours were performed. The experimental results indicated a negative effect on all measured indices of nanomaterials. The third experiment with 10 treatments (Silver thiosulphate in three concentrations, 0.5, 1 and 2 (mg/L) with control)were performed and the results showed that high concentrations of potassium silicate (100 and 300 mg/l) had a positive effect on the measured parameters. The fourth experiment with 7 treatments (10 mg/l each of nanomaterials, 1 mg/l silver thiosulphate and 100 mg/l of calcium chloride and potassium silicate with control) was carried out. The results showed that non-nanomaterials treatments showed better effect on improving the physicochemical characteristics and vase life of cut rose flowers than nanomaterials. In the fifth experiment 7 treatment including (10 mg/l of each nanomaterials in preservative solution distilled water and %1sucrose + distilled water as the control) was carried out. It was shown in this experiment that distilled water as the preservative solution was more effective than sucrose on the flower. In general, Particles in the bluk (non-nano) than nano Scales preferred. Potassium silicate as a new material for the improvement of the flowers is recommended.