The technology of HVDC based on VSC develop rapidly in recent years. To ensure the safe operation of power grid, the fault-crossing capability has become a basic demand for wind farms connected by HVDC transmission. The paper researches on the fault-crossing capability of VSC-HVDC connected wind farm. In order to solve the problem that the fault of grid connection point leads to the reduction of transmission active power of converter station, which makes the power of AC system and DC system unbalanced, and causes the problem that the rapid rise of DC voltage affects the operation of the system. Based on the traditional energy-dissipating resistance circuit, a new resistance topology is proposed. When the fault occurs on the grid side, the VSC-HVDC wind power grid-connected system can smoothly cross the fault by putting in the energy-consuming resistance to absorb the power difference and coordinated control combined with wind turbines is carried out. Finally, the model of wind farm connected by VSC-HVDC is built in PSCAD/EMTDC and dynamic simulations are presented to assess the performance of the control method which is proposed.