The purpose of the present invention is to provide a fiber structure for use as a cell scaffold material having both improved cell adhesiveness and improved cell proliferation by controlling physical properties, namely the orientation and the average fiber diameter of a fiber in a multifilament. The present invention provides a fiber structure for use as a cell scaffold material which includes a multifilament formed by bundling single fibers having an average fiber diameter of 1-15 µm and in which the single fibers satisfy the condition of formula 1. (Y/X) × 100 = 50···formula 1. [In formula 1, X represents the number of single fibers the average intersection angle of which is examined and Y represents the number of single fibers, among X, the average intersection angle of which is 25° or less.]
