The invention discloses a traditional Chinese medicine preparation method for the treatment of deficiency of vital energy and fever of children, belonging to the technical field of traditional Chinese medicine preparation methods. If penicillin is used, an allergic reaction is liable to occur, in particular the anaphylactic shock which can jeopardize life without timely rescue. The inventive technical proposal are that: 20 drugs of milk veteh, codonopsis pilosula, atractylodes macrocephala, caryophyllaceous ginseng, yam, jujube, sealwort, maltose syrup, cotton root, bidens tripartite, Chinese thorowax, cimicifuga foetida, root of kudzu vine, fructus viticis, periostracum cicadae, Chinese tamarisk, light black bean, burdock, pericarpium citri reticulatae and licorice are put into 1000 milliliters of water for being immersed for 30 minutes and then decocted with soft fire, the decocted medicine liquid is filtered and deslagged to decoct 180 milliliters of the medicine liquid, which is the traditional Chinese medicine for the treatment of deficiency of vital energy and fever of children. The invention has the advantages that: the Chinese medicine liquid is simple in preparing, less in Chinese medicine toxic side effect, easy in absorption, short in courses of the treatment and high in cure rate as well as can avoid bad reactions caused by the application of the penicillin.