The invention relates to the technical field of bathing goods in daily life, in particular to shower gel with a health care function and a preparation method thereof. The shower gel comprises, by weight, 16% of cane sugar cocinic acid ester, 1% of sodium carboxymethylcellulose, 1% of ethylene glycol distearate, 0.2% of ethylene diamine tetraacetic acid disodium, 0.8% of citric acid, 1% of tea seed oil, 0.8% of chitosan, 5% of water soluble lanolin, 8% of ecological tea powder and 66.8% of deionized water. The proportion of all the components is appropriate. By adding the ecological tea powder, the shower gel has functions of sterilizing, relieving itching, diminishing inflammation, easing pain, and being skin-friendly and refreshing and the like, has health care functions of resisting oxidation, eliminating free radicals, preventing caries, removing smell, restraining atherosclerosis, reducing blood fat, reducing blood pressure, preventing and curing angiosclerosis, preventing nyctalopia and cataract and the like and has various effects.