The invention belongs to the technical field of traditional Chinese medicine preparation, and provides a traditional Chinese medicine hydrogel patch capable of treating chemotherapeutic phlebitis, anda preparation method thereof in order to solve the technical problems that an original compound Tengzhigao has certain potential safety hazards, is inconvenient in use, is inaccurate in dosages, causes skins to be greasy, is difficult in cleaning and the like. A medicine-carrying hydrogel matrix is prepared by mixing caulis sargentodoxae, radix angelicae dahurioae, bulbus fritillariae thunbergii,phellodendri chinensis cortex, radix rhei, radix aucklandiae, olibanum, myrrha, borneol and menthol at a certain ratio and adding skeleton materials, tackifier, humectant, cross-linking agents, crosslinking modifiers, filling agents, pH conditioning agents and distilled water, and then, the medicine-carrying hydrogel matrix is processed through steps of coating, cutting and standing to obtain thetraditional Chinese medicine hydrogel patch. The patch disclosed by the invention is pasted to chemotherapeutic phlebitis local skins, performs a targeted therapy function through the performing of the active ingredients of a long-acting slow release medicine, has the advantages of being convenient in use, comfortable in skin feelings, free from greasy feelings, free from irritation for skins, free from allergy and the like, and is an ideal external medicine preparation for treating the chemotherapeutic phlebitis.