The invention relates to a traditional Chinese medicinal gargle containing forsythia suspense leaf extract and other traditional Chinese herbal medicinal components, and a preparation method thereof, belonging to the technical field of traditional Chinese medicinal oral cleaning health-care products, and aiming to solve the technical problem of providing a convenient and effective oral product. The forsythia suspense leaf gargle is characterized by comprising a functional component, a surfactant, a wetting agent, a viscosity regulating agent, a flavoring agent, a colorant, an aromatic, a PH regulating agent, a chelating agent and water, wherein the functional component includes a forsythia suspense leaf extract and a traditional Chinese medicinal mixture extract which is prepared by mixing and extracting scutellaria baicalensis, mint, liquorice, umbellate rock jasmine and raw rehmannia. The gargle has the effects of cleaning the oral cavity, removing residues in the oral cavity, inhibiting and reducing the growth and propagation of bacteria in the oral cavity, cleaning, restraining and sterilizing bacteria, resisting bacteria and diminishing inflammation and the like, and can play roles in prevention and assisted treatment on periodontitis, stomatitis, swelling and pain in throat and other diseases.