Disclosed is an occluder having a flat disk with a variable angle, comprising a single layer disk (4), a cock body (6) and a loin (5) connecting the single layer disk (4) and the cock body (6). The single layer disk (4) is woven by an elastic yarn and comprises multiple radially arranged support rods (40). Grids woven together by an elastic yarn are provided on the surface of the cock body (6). The loin (5) comprises at least one connective suture. An annular interlocking structure is provided in the centre of the single layer disk (4). Multiple support rods (40) are connected into a flat, integral body via the annular interlocking structure. The connective suture of the loin (5) is connected to the annular interlocking structure and the grids of the cock body (6). The occluder has the features of a flat single layer disk and a flexible loin structure at the same time, and the single layer disk has the function of adaptive regulation of morphology and is able to effectively adapt to different physiological structures while reducing complications.
