The invention relates to the technical field of traditional Chinese medicine preparation, and in particular relates to a traditional Chinese medicine composite gel agent for treating trauma as well as a preparation method and application of the traditional Chinese medicine composite gel agent. The traditional Chinese medicine composite gel agent for treating trauma, which is provided by the invention, is prepared from a traditional Chinese medicine extract of 7 raw material medicines, namely moghania macrophylla, angelica sinensis, astragalus membranaceus, cacumen biotae, cape jasmine, sanguisorba officinalis and mint, and has the effects of clearing heat and removing toxin, cooling blood and removing stasis, removing swelling and relieving pain and stopping bleeding and generating muscle. Meanwhile, the traditional Chinese medicine composite gel agent for treating trauma, which is provided by the invention, is good in antibacterial property, rapid in pain stopping, good in treatment effect, short in treatment course, free of toxic or side effect, free of scar after treatment, high in treatment rate, and can be widely applied to aspects such as burning and scald, infectious trauma and bedsore.