The embodiment of the invention discloses an indoor positioning method and device and a storage medium, being applied to the technical field of information processing. The indoor positioning method comprises the following steps: terminal equipment acquires feature information of each object in a collected first frame of indoor image, selects a first similar image of a first frame of indoor image from a preset image model according to the acquired feature information, and determines the position information corresponding to the first similar image; and when the first frame of indoor image is the first frame of indoor image, the indoor position of the terminal equipment can be determined directly according to the position information corresponding to the first similar image. Thus, base station equipment does not need to be installed indoors; and the indoor image can be acquired through the terminal equipment and the similarity between the indoor image and the image model can be calculated without a laser induction device and the like on the terminal equipment, so that the indoor position of the terminal equipment can be determined, and the calculation process is relatively simple, and over-high implementation cost is not needed, and the expandability is relatively high.