To provide a fireproof curtain improving the heat resistance of the sealing function by magnet plates without spoiling the function of the fireproof curtain itself.

This fireproof curtain 10 is so formed that fireproof sheets 11 and 12 are attached with the magnet plates 13 and the magnet plates 13 attract opening edges 23 in installation parts to close the opening parts of the installation parts. The magnet plate 13 is formed into an oblong shape using a magnet with Curie temperature of 800°C or more alone. A plurality of oblong magnet plates 13 are vertically attached to the circumferential edges of the fireproof sheets 11 and 12 at a predetermined interval, so that the fireproof sheets 11 and 12 can be vertically wound up and down.