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In order to introduce best chemical treatment and preservation method for cut chrysanthemum a factorial experiment of completely randomized design was carried out. The chemical treatments were: citric acid, hydroxyquinoline citrate, ethanol, benzyl adenine, cobalt chloride and aluminum sulfate all of which included sucrose while distilled water was used as control. The experiment was carried out using cold storage along with, pulse and continuous methods of application. The vase life of cut flowers, chlorophyll content, fresh weight, ethylene production and water uptake were evaluated for treatments. Results indicated that no ethylene was produced by flowers. Longevity was promoted in cold storage. Continuous method of application was a better mthod than pulse method. All chemical treatments increased longevity of cut flowers among them hydroxyquinoline citrate was shown to be the best treatment.