PROBLEM TO BE SOLVED: To provide a base material for formation of film connective tissue that can form film connective tissue of a desired thickness and that can form a desired surface condition on both sides of connective tissue.SOLUTION: Double-faced connective tissue formation surfaces 3 for forming connective tissue are made to oppose each other. A film connective tissue body formation base material 1 is arranged in an environment in which a biological tissue material is present. Film connective tissue is formed on the connective tissue formation surface 3. Both sides of the film connective tissue are formed to correspond to the connective tissue formation surfaces 3. An interval between the connective tissue formation surfaces 3 is set appropriately. The film connective tissue of a desired thickness is formed. The connective tissue formation surface 3 is formed to into a smooth surface. Both sides of the connective tissue are formed into a desired surface condition such as a smooth surface.COPYRIGHT: (C)2014,JPO&INPIT【課題】所望の厚さの膜状の結合組織体を形成することができ、しかも、結合組織体の両面を所望の表面状態に形成することのできる膜状結合組織体形成用基材の提供。【解決手段】結合組織を形成する二面の結合組織形成面3を互いに対向させる。膜状結合組織体形成用基材1を生体組織材料の存在する環境に配置する。結合組織形成面3に膜状の結合組織体を形成する。膜状の結合組織体の両面が結合組織形成面3に合って形成される。結合組織形成面3の間隔を適宜設定する。所望の厚さの膜状結合組織体が形成される。結合組織形成面3を平滑面に形成する。結合組織体の両面が平滑面になどの所望の表面状態に形成される。【選択図】 図1