Packaging bottle with replaceable inner container

The packaging bottle comprises an outer cover, an outer bottle body and the inner container, the inner container is detachably arranged in the outer bottle body, the outer cover is connected with the outer bottle body, and the inner container is sealed in the outer bottle body; a positioning groove is formed in a bottle opening of the outer bottle, the inner container comprises an inner bottle and an inner cover, the inner cover used for sealing the inner bottle is arranged at a bottle opening of the inner bottle, and a positioning buckle connected with the positioning groove in a buckled mode is arranged on the inner cover. According to the packaging bottle, the inner container and the outer bottle are detachably connected, and the inner container can be detached from the outer bottle, namely, the inner container can be replaced, so that the cost can be effectively saved, and the concept of energy conservation and environmental protection is met; a consumer can replace the inner container at any time accordi