The invention belongs to the technical field of eye masks and in particular relates to an eye protecting patch and a preparation method thereof. The eye protecting patch is composed of a black patch and a white patch, the black patch is prepared from water, glycerol, sodium polyacrylate, medicinal powder A, tartaric acid, amino acetic acid dihydroxyaluminum salt, phenoxyethanol, disodium EDTA, methyl hydroxybenzoate, ethyl hydroxybenzoate and borneol, and the white patch is prepared from water, glycerol, sodium polyacrylate, propanediol, medicinal powder B, tartaric acid, amino acetic acid dihydroxyaluminum salt, phenoxyethanol, disodium EDTA, methyl hydroxybenzoate, ethyl hydroxybenzoate and borneol. The eye protecting patch provided by the invention has the advantages that eye skin is promoted to deeply absorb moisture and essence, metabolism and blood circulation of the eye skin are improved, and various discomforts such as eye fatigue are relieved, formation of eye fine veins is delayed, ocular inflammation and infection are prevented, and eye health is promoted.