The present invention relates to a left atrial appendage occluder having a sealing disc and a fixing bracket which is connected to the sealing disc and located at one side of the sealing disc； the fixing bracket comprising a connecting portion connected to the sealing disc, and a plurality of supports. After radiating out distally from the connecting portion, the plurality of supports are bent to extend proximally to form a plurality of spaced suspended supporting segments. The left atrial appendage occluder further includes a thin film, with all the supports being connected through the thin film.
