A kind of visible indoor location method based on intelligent mobile terminal is put forward. The method can get the light emitting diode light source label and image information through the terminal imaging component. According to the imaging position relationships between light sources and the focal length, geometric optical imaging principle is used to calculate the terminal position coordinates. The nonlinear system is set up by visible light imaging positioning system model and geometric optics imaging principle. The calculation of final position is completed using unscented Kalman filter algorithm. The theoretical simulation and experimental system verify the feasibility of the proposed method. The data shows that the proposed method can realize decimeter-level precision indoor positioning.