As a new information acquisition and processing techniques, wireless sensor networks can be widely used in the field of complex large-scale monitoring and tracking tasks. Network self-localization is the basis for most applications. The paper introduces how the practical application of a wireless sensor network(or WSN) achieves targeted localization. First of all, a brief description of the technologies of localization of the off-the-shelf. Then, the solutions focuses on the design of the technologies for dynamic, real-time and accurate positioning. Also we propose a solution under the situation of lack of reference points using buffered queue of the original data, so as to enhance the positioning of the dynamic, real-time and robustness.