The present invention relates to a method and an apparatus both for producing molecular assemblies of an amphiphilic block polymer. The method of the present invention includes: applying a polymer solution (45) containing an amphiphilic block polymer and a solvent in a layered shape on a planar base member (11) in a film forming part (40)； forming a polymer film on the base member (13) by removing the solvent from the coated layer of the solution in a drying part (30)； and producing molecular assemblies by bringing the polymer film into contact with a water-based liquid (55) in a molecular assembly forming part (50). The amphiphilic block polymer has a hydrophilic block chain and a hydrophobic block chain. The hydrophilic block chain preferably has 20 or more sarcosine units, and the hydrophobic block chain preferably has 10 or more lactic acid units.本發明是有關於一種兩親性嵌段聚合物的分子集合體的製造方法及製造裝置。本發明的方法包括：於製膜部（40）中，將包含兩親性嵌段聚合物及溶媒的聚合物溶液（45）於面狀的基材（11）上塗佈成層狀的步驟；於乾燥部（30）中，自溶液的塗佈層中去除溶媒，而於基材（13）上形成聚合物膜的步驟；以及於分子集合體形成部（50）中，使聚合物膜與水系液體（55）接觸而獲得分子集合體的步驟。兩親性嵌段聚合物具有親水性嵌段鏈及疏水性嵌段鏈。親水性嵌段鏈較佳為具有20個以上的肌胺酸單元，疏水性嵌段鏈較佳為具有10個以上的乳酸單元。
