Abstract: In view of the deficiency of the triangular network in present Network RTK (VRS), the paper firstly establishes a kind of baseline solution method of network RTK (VRS) based on star structure, and proposes the ambiguity resolution method applicable to star structure. Then further research is done to analyze the algorithm of ionospheric and tropospheric correction separately. Lastly, verify and analyze the network ambiguity resolution and correction calculation in both star structure network and traditional triangular network through two tests. These tests indicate that the Network RTK (VRS) based on star structure this paper proposes can obviously accelerate the fixed time of network ambiguity resolution, which can be up to 50%, and can achieve higher precision and reliability in the generation of network correction. The results of research can have important theoretical meaning in the wider use of Network RTK (VRS).