The invention discloses a lornoxicam hydrogel patch and a preparation method thereof. In the hydrogel patch, lornoxicam is used as a medicinal active ingredient, and the hydrogel patch consists of a medicament-containing matrix, an adhesive layer, a lining layer and a protective layer, wherein the medicament-containing matrix consists of the lornoxicam, a hydrogel matrix and a penetrating agent. The patch makes the medicament release stably to prolong half-life period, is remarkably superior to other conventional preparations of the lornoxicam, and has the 48-hour accumulated permeation quantity of over 300ug.cm<-2> through percutaneous experiments in vitro. Pharmacodynamic tests prove that the lornoxicam hydrogel patch has excellent effect of relieving pain and diminishing inflammation.