The purpose of the present invention is to provide an adhesion prevention material capable of exhibiting excellent adhesion preventive effect. This adhesion prevention material concurrently uses: (A) a peptide (A-1) having an amino acid sequence -(X-Pro-Y)n- [wherein X represents an arbitrary defined amino acid, Pro represents proline, Y represents hydroxyproline or proline, and n is an integer between 1 and 10] and/or a peptide (A-2) having an amino acid sequence -(Pro-Y)m- [wherein Pro represents proline, Y represents hydroxyproline or proline, and m is an integer between 1-10]； and (B) a gelatin gel. This adhesion prevention material exhibits a dramatically enhanced adhesion preventive effect as compared with the case where the abovementioned components are used individually, and in particular, has a markedly superior effect against adhesion of tendons.本發明之目的是提供一種會起到優良的沾黏防止效果的沾黏防止材。一種併用了下述的沾黏防止材：(A)(A-1)包含-(X-Pro-Y)n-[X表示任意的胺基酸，Pro表示脯胺酸，Y表示羥基脯胺酸或脯胺酸。n為1~10的整數]之胺基酸序列的胜肽，及/或(A-2)包含-(Pro-Y)m-[Pro表示脯胺酸，Y表示羥基脯胺酸或脯胺酸。m為1~10的整數]之胺基酸序列的胜肽，與(B)明膠凝膠；與單獨使用該等成分的情況相比，前述沾黏防止材之沾黏防止效果飛躍性地提升，特別是對於腱的沾黏起到格外優良的防止效果。
