In an object holding device, it is possible to prevent loosening of a cord-like body for holding an object without requiring any users special operation. The object holding device includes a fixing belt (3) wound on a plastic tank (2), a male buckle (9) provided at a fixing belt, a reel (4) having the fixing belt wound around and urged to rotate in a winding direction of the fixing belt and a reel housing (11) connecting with a male buckle. When the male buckle is connected to the reel housing, a rotation of the reel is restricted at least in a counter-winding direction of the fixing belt.
