The invention discloses a pure Chinese medicinal injection for treating mixed infection of swine streptococcus and swine fever. The injection is extracted from the following Chinese medicinal crops in parts by weight through water extraction, distillation and alcohol precipitation methods: 4-10 parts of honeysuckle, 3-9 parts of baical skullcap root, 3-9 parts of bupleurum, 2-8 parts of rehmannia, 2-5 parts of gardenia and 2-4 parts of orange peel. Through repeated experiments, the contents of the Chinese medicinal crops and the components thereof are determined, and the injection has a good medicinal synergistic effect. The injection has a powerful killing effect on the virus causing the mixed infection of the swine streptococcus and the swine fever; the immunity of the organism of a pigcan be quickly enhanced; secondary infection and other diseases are prevented; the cure rate reaches 90 percent; and the injection is safe, has a small toxic or side effect and no resistance, can be used for substituting similar chemical drugs, has the effects of promoting rehabilitation, removing heat and damp, purging fire and removing toxin, cooling blood and promoting secretion and has a definite curative effect.