To provide a slider for a fixed fastener which, even when a product is carried in a bag body with a slider attached to a fastener, can prevent the things from freely spilling out, which can prevent stealing or the like in stores, and which enables a purchaser of a bag body containing products to easily slide the fastener, and also to provide the bag body using the slider.

The slider for a fixed type fastener includes: a slider (3) formed by engaging two members, one member of which is a slider member (3a) provided with a projection (3c) for separating an engaged state of a fastener (2), and the other member of which is a slider member (3b) provided with a recessed part (3d) for engaging with the separated fastener (2); a projecting part (3f) having a through hole (3e) either on the slider member (3a) or the slider member (3b); and a fixture (4) including a locking member (5) for fixing the one of the slider members to a bag body and a connecting bar for engageably/disengageably fitting the other into the hole (3e) of the projecting part (3f) provided at one of the slider members.