The invention discloses a purple cabbage body building coated salted duck egg. The purple cabbage body building coated salted duck egg is prepared from, by weight, 500-510 parts of duck eggs, 30-35 parts of purple cabbage, 5-6 parts of radix isatidis particles, 20-23 parts of black sesame seeds, 24-27 parts of calabash seeds and a proper amount of sodium carbonate, malic acid, polyvinyl alcohol, glycerol, table salt and water. The soaking and pickling liquid for the salted duck egg contains the multiple raw materials including the purple cabbage, the calabash seeds and the like, nutrition is abundant, a large number of nutrient elements are adsorbed into the duck eggs, the overall nutrition of the salted duck egg is improved, and after being eaten, the salted duck egg can build the body and is beneficial to the physical health. After the process is improved, the permeability of an eggshell is improved, the duck egg salting process can be shortened, and a coating is formed outside the eggshell and can keep freshness of salted duck egg better.