In this study,the plant characters,pH,SOD and the nutrients in different petals parts were determined.The results showed that chrysanthemum petal high-protein,high reducing sugar rose petals,lily petals high-SOD and total sugar,kapok flower petals high vitamin C,camellias and gladiolus flower petals of high soluble solids content highly to prove that six kinds of flower petals can eat,medicinal,health care use,they were eating gem.