The invention discloses epoxy type enameled wire heat-resistant self-adhesive paint for transformer winding wire splicing. The heat-resistant self-adhesive paint is prepared from the following components: 30-40 parts by weight of bisphenol A epoxy resin, 5-12 parts by weight of novolac epoxy resin, 2-6 parts by weight of organic silicon resin, 2-6 parts by weight of a medium-temperature latent curing agent with model of 596, 0.2-0.4 part by weight of a coloring agent, 25-38 parts by weight of dimethylbenzene and 8-12 parts by weight of n-butyl alcohol. The preparation method of the heat-resistant self-adhesive paint comprises the following steps: dissolving for the first time, melting, mixing, filtering and curing, thereby obtaining the heat-resistant self-adhesive paint. The glass transition temperature of the heat-resistant self-adhesive enameled wire coated by the heat-resistant self-adhesive paint is up to 100-120 DEG C, and the binding performance of the guide wire and the mechanical strength of the winding can be still kept under an environmental condition of 120 DEG C. The preparation process has the advantages of simple steps, simple and convenient operation, and the like.