The invention relates to a method for efficient color retention,
insect prevention and
corrosion prevention of
plant specimens. The method comprises the steps of collecting fresh branches, correcting the specimens, wrapping the specimens with absorbent paper, pressing the specimens with an iron, sterilizing the specimens for a short time by using high-pressure steam, dipping the specimens in stationary liquid and preserving liquid, sealing with mixed molten
wax, binding and the like. According to the method, branches and leaves are made into specimens in a split mode; according to the
cell permeability and body color differences of the leaves and the branches, a
copper sulfate solution with a concentration of 2.8-3.2 wt% is used as the stationary liquid for the branches,
sulfurous acid with a concentration of 2.8-3.2 wt% is used as the preserving liquid for the branches, and the branches are soaked in a specimen
bottle for preservation; and for leaves, the leaves are soaked in
alcohol with a concentration of 14-16% for 3-4 days, then
sulfurous acid is added until a concentration is 15% after spots appear on the surfaces of the leaves, then the leaves are soaked for 1-2 days, then the leaves are washed with
distilled water and soaked in
alcohol with a concentration of 19-22% for hardening and bleaching until spots are eliminated, and the leaves are soaked in a specimen
bottle for preservation with a
mixed solution containing 1-2% of
sulfurous acid and 1-2% of glycerinum as the preserving liquid. The specimens prepared by the method have the characteristics that the color of the specimens is bright, the stereoscopic impression of the specimens is strong, the forms of the specimens are vivid, the morphological characteristics of plants are convenient to observe, and the identification of the plants is not limited by seasons.