The invention discloses a spleen-tonifying and intelligence-promoting ointment for children and a preparation method thereof, and relates to the technical field of medical care. The spleen-tonifying and intelligence-promoting ointment comprises the following raw materials of radix codonopsis, radix pseudostellariae, radix adenophorae and radix rehmanniae. According to the spleen-tonifying and intelligence-promoting ointment for children and the preparation method thereof, the spleen-tonifying and intelligence-promoting ointment is prepared by decocting the mixed particles, warm water and maltose, so that the spleen-tonifying and intelligence-promoting ointment is good in taste and easy to accept by children; in addition, the ointment can play a very good conditioning role on children's recurrent constipation, diarrhea, dyspepsia, poor absorption, recurrent upper respiratory tract infection and sequelae, namely pharyngitis, tonsil hypertrophy, adenoid hypertrophy, allergic rhinitis and allergic tracheitis caused by congenital spleen and stomach deficiency and postnatal spleen and stomach weakness; and therefore, the problems that an existing Chinese patent medicine cannot achieve the effects of regulating constipation and diarrhea, regulating the spleen and the stomach, tonifying the spleen, promoting intelligence and regulating repeated upper respiratory tract infection, and the existing Chinese patent medicine is difficult to accept and take by children due to poor taste are solved.