Abstract: A microneedle patch and a preparation method therefor are disclosed. The microneedle patch includes a base and a number of needles arranged on a surface of the base. The needles are dissolvable pointed bodies and contain a composition with cosmetic effects. The composition includes astaxanthin, hydrophilically modified resveratrol, collagen and hyaluromic acid. The method includes the steps of: pouring an aqueous solution of the composition into a mold; vacuumizing the mold; removing water therefrom; and demoulding the mold, thereby obtaining the microneedle patch. The present invention provides a variety of advantages including high safety, high stability, good absorption into the skin and obvious cosmetic effects.