In this study, a protection strategy is proposed to optimize the privacy strength of the source node location for mitigating problems such as fewer hops between the phantom node and the source node, concentrated distribution areas, and insufficient diversification of the transmission paths. Using the proposed strategy, the diversity of phantom node selection can be enhanced and the visual area of an attacker can be effectively avoided. First, set the conditions for selecting phantom nodes, and the dynamic random number generated by the source nodes, and the storage location information layering in the area to select phantom nodes ensures that there is sufficient safe distance between phantom nodes and source nodes. Then, set the set of neighbor nodes with the least number of hops from the sink node and equal distances as a virtual ring. When the data packet arrives at the virtual ring, the transmission direction is randomly selected, and the dynamically generated hop value is used to transmit hop by hop, which can effectively enhance transmission the diversity of paths extends the average tracking time of the attacker. Simulation results show that compared with the traditional strategy, the proposed strategy can enhance the privacy strength of the source node location.