For resolving the problems including shadowing, poor secrecy, expensive consumption, and excessive interference in visible light indoor dynamic target positioning method with improving accuracy, an indoor walking target 3D positioning method was proposed based on white light LED. According to the walking characteristic, the model was established with fixed ommateum receivers, SiO2 transparent floor, and beam displacement(BD). Then the virtual direct transform(VDT) was actualized with two optimum ommateum lenses for 3D position. Indeed, the proposed method used only one LED emitter for saving energy. Also, it obtained the shorter beam propagation distance, improved optical power, and better confidentiality and generalization. Experiment shows that with the proposed method the error rate can be limited within 3.5%. And more than 5 targets can be most effectively positioned, while the distance between adjacent receivers is equal to the coverage radius from each one.