According to an embodiment of the present disclosure, a structure constructed by a sheet includes a sheet body. The sheet body has a plurality of enclosed paths. A plurality of slits and connection portions are arranged along each enclosed path. Each connection portion is located between two adjacent slits. The sheet body is flexible. In an extended state, the slits form extended openings. At least one extended opening is a symmetric opening, so that the sheet body is extended to form a structure constructed by sheet. The structure constructed by sheet forms a stereoscopic curved surface, and the plurality of connection portions is located on a plurality of contours of the stereoscopic curved surface.