Abstract: Digital ocean system is a useful tool for ocean application and research, and vector field visualization under 3D globe environment is an important task of digital ocean system. To integrate the vector field visualization results into the 3D environment with geography information, a clustering based approach is proposed in this paper. First, a set of streamlines are generated to cover the vector field domain. Then the streamlines are clustered into different group. Different post processions are adopted according to different visualization applications. A simple streamline representation of vector field is realized by extracting typical streamline from the sorted streamlines of each group; By generating the particles from the start positions of each group, a real-time particle based visualization method is used to expose the wind feature; An enhanced texture based visualization method is introduced by introducing the weighted matrix. Experiments show that the results of the algorithm are satisfactory and efficient.