The invention discloses an artificial soft posture preserved ornamental plant treating agent. The treating agent comprises carbohydrates, a nutrition regulator, an antioxidant, a humectant, an antiseptic and food color, and is prepared from 30 to 45g of carbohydrates, 30 to 45g of nutrition regulator, 20 to 35g of antioxidant, 20 to 35g of humectant, and 12 to 25g of food color which are dissolved in 1 liter of water and uniformly mixed. The treating agent can perform cell sap replacement and cell sealing treatment by utilizing the natural mechanism of the cell metabolism of flowers and plants, so that the plants can keep natural postures, texture and softness, are not affected by space and environment, and can be kept fresh as long as 1 to 2 years; the plants, treated by the treating agent and used as bonsai flowers, are unnecessary to water and maintained daily; the ornamental characteristics of the plants are greatly enhanced compared with dry flowers; and the preservation period is prolonged by hundreds of times compared with that of fresh cut plants and flowers.