The invention relates to an ultrasonic 
permeation enhancing preparation method for a preserved fresh flower and a preserved fresh flower and belongs to the technical field of flowering 
branch chemicalpreservation. The ultrasonic 
permeation enhancing preparation method for the preserved fresh flower comprises the following steps of conducting decolorizing treatment on a fresh 
cut flower, then immersing the fresh 
cut flower into a 
liquid phase substitute for ultrasonic treatment, and 
drying. According to the ultrasonic 
permeation enhancing preparation method for the preserved fresh flower, thethermal motion of substitute molecules and water molecules can be quickened by the 
cavitation effect and 
heat effect of ultrasonic, therefore the 
disadvantage can be overcome that the power of insideand outside 
diffusion of the 
moisture in the flower when replacement is conducted in the normal condition; meanwhile, micro channels are formed on the surface of 
petal tissues and macromolecules in the 
liquid phase substitute is promoted to permeate into the micro channels for 
moisture replacement, so that the shrinking degree of the petals is effectively reduced; moreover, all the components in the 
liquid phase substitute is uniformly distributed in 
cell tissues, so that the overall preserved fresh flower is uniformly dyed, the flexibility of the petals is good, the preserved fresh flower ismoist, soft and good in 
soundness and the appearance form of the fresh 
cut flower is largely kept.