The invention discloses an external use patch for improving immunity and a preparation method of the external use patch. The effective components of the external use patch are prepared from the following raw material medicine in parts by weight: 30-40 parts of musk and 15-20 parts of white mustard seeds. Based on many years of clinical research and under the guidance of a modern medical theory, anapplicant combines the musk and the white mustard seeds, the components interact with each other to achieve a synergistic effect, a safe, effective, non-toxic and side-effect external use patch thatcan effectively improve the immunity of a body is provided for people, and acupoints of the body are stimulated and treated from time to time, the purpose of strengthening the body and strengthening the body can be actually achieved, the effect is good, the effect is quick, the curative effect significant, and the use is convenient. According to the external use patch for improving the immunity and the preparation method of the external use patch, the composition is simple, and the price is low.