The present invention provides a new structure made of collagen for improving promotion of nerve tissue regeneration, curing and regeneration of a defective part of a soft biological tissue and so on without using laminin or nerve growth factor (NGF), and a member for tissue regeneration including the same. The structure made of collagen according to the present invention has a thin film multilocular formation and therefore a new structure different from a colloid form, a gel form, and a fiber form. Therefore, when the new structure made of collagen according to the present invention is used as a member for tissue regeneration, surprisingly, promotion of regeneration, shortening of a treatment period, functional recovery, or the like of bodily tissue such as nerve tissue, subdermal tissue, submucosal tissue, membranous tissue, fat tissue, muscle tissue, skin tissue, and gingival tissue can be improved. Furthermore, when the structure according to the present invention is used to a patient having neuropathic pain, the member has an effect on the disappearance of the pain.