Abstract: This invention is related to a bottle structure. At least an embedded slot is disposed on a bottle body. A positioning member is disposed on the opening of the embedded slot. The inner edge of the positioning member projects toward the inner side of the opening of the embedded slot to form a stop edge. An embedded fixing part may coordinate with a spirally fixed element to lock the bottle body to a bicycle body. An embedded block of the embedded fixing part is embedded into the embedded slot of the bottle body and against the stop edge of the positioning member. A lug connected the bottom of the embedded block is located against positioning bumps disposed on inner edges of the positioning member to stably install the bottle body on the bicycle body.