Abstract: With the gradual increase of the proportion of multiple types of DC lines in the power system, the demand for power flow data exchange between the dispatching system and the heterogeneous platforms has increased significantly. So it is urgent to study the generation of power flow calculation data in the new form of AC-DC hybrid systems. In this paper, from the four main steps of topology transformation, network topology analysis, equipment modeling and data generation strategy, the CIM/XML data including an AC/DC system is converted to the input data of power flow calculation. Firstly, from the perspective of the switching topology between the devices, the Depth First Search algorithm (DFS) search and the device topology splicing are carried out to realize the conversion from the switch/node model to the bus/branch model. Secondly, after the active topological islands are screened and the non-live devices are eliminated, the influence of the converter modeling in the CIM/XML on the selection of the AC and DC nodes is emphatically analyzed. Then the selection rules of the DC nodes and the strategy of the DC data generation with universality are proposed. Finally, taking the CIM/XML data derived from an AC/DC network with a dispatch of 500kV or above as an example, the power flow calculation results are compared with the measured SCADA data to verify the effectiveness of the proposed strategy.