A curtain airbag device comprising: a cushion portion which is mountable on a vehicle in an accommodated form having a long and narrow shape by being rolled or folded; a bracket attachable to a wall inside a vehicle cabin; a fabric tab that connects the bracket and the cushion portion; and a wrapping member having a strip shape, wrapped around the cushion portion in the accommodated form and the bracket so as to connect the cushion portion and the bracket, wherein the bracket includes: a base portion having an insertion hole; a vehicle fixable portion which extends upward from the base portion and makes contact with and is fixed to the wall; and protruding portions (118a, 118b) that protrude upward from the base portion on both sides in a width direction of the vehicle fixable portion and are lower in height than the vehicle fixable portion, the tab is inserted into the insertion hole of the bracket and connected to an upper edge of the cushion portion, the wrapping member has a root portion connected to at least one of the upper edge of the cushion portion and the tab, and hooking holes (116a, 116b) formed on both ends in a width direction of a distal end of the wrapping member, and the wrapping member is rolled toward the vehicle interior side from the root portion on a lower side of the bracket and wrapped around the cushion portion in the accommodated form, and the hooking holes (116a, 116b) are hooked on the protruding portions (118a, 118b). a cushion portion which is mountable on a vehicle in an accommodated form having a long and narrow shape by being rolled or folded; a bracket attachable to a wall inside a vehicle cabin; a fabric tab that connects the bracket and the cushion portion; and a wrapping member having a strip shape, wrapped around the cushion portion in the accommodated form and the bracket so as to connect the cushion portion and the bracket, wherein the bracket includes: a base portion having an insertion hole; a vehicle fixable portion which extends upward from the base portion and makes contact with and is fixed to the wall; and protruding portions (118a, 118b) that protrude upward from the base portion on both sides in a width direction of the vehicle fixable portion and are lower in height than the vehicle fixable portion, the tab is inserted into the insertion hole of the bracket and connected to an upper edge of the cushion portion, the wrapping member has a root portion connected to at least one of the upper edge of the cushion portion and the tab, and hooking holes (116a, 116b) formed on both ends in a width direction of a distal end of the wrapping member, and the wrapping member is rolled toward the vehicle interior side from the root portion on a lower side of the bracket and wrapped around the cushion portion in the accommodated form, and the hooking holes (116a, 116b) are hooked on the protruding portions (118a, 118b). a base portion having an insertion hole; a vehicle fixable portion which extends upward from the base portion and makes contact with and is fixed to the wall; and protruding portions (118a, 118b) that protrude upward from the base portion on both sides in a width direction of the vehicle fixable portion and are lower in height than the vehicle fixable portion, the tab is inserted into the insertion hole of the bracket and connected to an upper edge of the cushion portion, the wrapping member has a root portion connected to at least one of the upper edge of the cushion portion and the tab, and hooking holes (116a, 116b) formed on both ends in a width direction of a distal end of the wrapping member, and the wrapping member is rolled toward the vehicle interior side from the root portion on a lower side of the bracket and wrapped around the cushion portion in the accommodated form, and the hooking holes (116a, 116b) are hooked on the protruding portions (118a, 118b).