A scaffold for cell proliferation having structure memory characteristics, in which a microfibrous or cocoon-like decellularized tissue matrix material and a particulate acidified hydrogel-like decellularized tissue matrix material are mixed at a predetermined ratio Thereafter, the porous material is formed by performing mold injection, freeze extrusion, reentanglement, and radiation processes. The scaffold does not require chemical cross-linking, has biological activity, and has a stable three-dimensional structure and structure memory characteristics. The scaffold has excellent biocompatibility and complete biodegradability, supports cell proliferation, tissue and organ growth in vivo and in vitro, and is suitable for repairing soft tissue wounds and defects in the human body. [Selection figure] None構造記憶特性を有する細胞増殖用足場であって、微繊維状又は絮状の脱細胞化組織マトリックス材料と粒子状酸性化処理されたヒドロゲル状の脱細胞化組織マトリックス材料とを所定比率で混合した後、金型注入、凍結押し出し、再交絡、及び放射工程を行ってなる多孔質材料である。該足場は化学架橋が不要で、生物学的活性を有し、安定した三次元構造及び構造記憶特徴を有する。該足場は、優れた生体適合性及び完全な生分解性を有し、細胞増殖、インビボ及びインビトロでの組織や臓器の成長をサポートし、人体の軟組織創傷と欠損の修復に適する。【選択図】なし