The invention discloses rhizomyidae manure as a main fertilizer of rosmarinus officinalis fertilizers, wherein, the breeding manner of rhizomyidae does not employ antibiotics. Forages of rhizomyidae mainly comprise bamboo root, bamboo stem and bamboo leaf. Because bamboo is limit in nutrition, rhizomyidae need to ingest a large amount of bamboo roots, bamboo stem and bamboo leaves every day, and a large amount of neyraudia reynaudiana, saccharum arundinaceum, miscanthus floridulus, pennisetum purpureum and pennisetum sinese seed are added for artificial breeding, and the forages are natural, organic and free of pesticide residues, heavy metal pollution and the like. Rhizomyidae manure contains a certain amount of protein, starch, wax, fat and resin besides cellulose obtained through decomposition conversion of microbes and enzymes, hemicellulose and lignin. The manure also contains amino acids, multiple effective trace elements, multiple vitamins, saccharides, carbohydrates and the like, and is abundant in nutrition. A fertilizer is prepared by mixing 75% of rhizomyidae manure with a dictyophora indusiata cultivation material disclosed in a patent with the application number of 201310225040.1, and the fertilizer is beneficial for improving soil, increasing the content of rosmanol, carnosol and carnosic acid in rosmarinus officinalis, increasing the germination rate of a seed, and enabling the plant to grow flourishingly and branches and leaves to be dense.