To provide a medical packaging sheet having self-adhesion resistance as well as provide a medical packaging material formed using the medical packaging sheet.SOLUTION: A medical packaging sheet 30 has a layer including thermoplastic resin on at least one surface. On a surface 30a of a layer 31 including the thermoplastic resin of one medical packaging sheet is superposed a surface on the opposite side to a layer including the thermoplastic resin of another medical packaging sheet. When, after that, a friction test and measurement are performed in a manner compliant to JISK 7125 using the one medical packaging sheet and the other medical packaging sheet, a coefficient of static friction of the surface having the layer including the thermoplastic resin of the one medical packaging sheet is equal to or larger than 0.1 and equal to or smaller than 2.5.SELECTED DRAWING: Figure 2【課題】互着防止性を備えた医療用包装シートを提供するとともに、上記医療用包装シートを用いて形成した医療用包装材を提供する。【解決手段】少なくとも一方の面に、熱可塑性樹脂を含む層を有する医療用包装シート３０であって、一の当該医療用包装シートの前記熱可塑性樹脂を含む層３１の表面３０ａに、他の当該医療用包装シートの前記熱可塑性樹脂を含む層とは反対側の面を重ね合わせて、前記一の当該医療用包装シートと前記他の当該医療用包装シートとを用い、ＪＩＳＫ ７１２５に準じて摩擦試験を行い測定した時、前記一の当該医療用包装シートにおける前記熱可塑性樹脂を含む層を有する面の静摩擦係数が、０．１以上２．５以下である。【選択図】図２
