This paper explores and analyzes the developments and applications of wireless LAN, image vision methodology, and visible light communication technology in indoor positioning system through the literatures survey. And the development bottleneck and the challenges to the field applications for indoor positioning technology will be discussed in-depth. We will propose the suggestions and development direction of how to design the precise and low-cost indoor positioning system in the future. Hopefully this paper will be helpful for popularity and practical applications in indoor positioning.