Aiming at the problem that it is difficult for traditional crowbar circuit (fixed-value resistance) to balance the generator rotor side current and DC bus voltage while solving link fault ride-through of Double Fed Induction Generator (DFIG), the method of generator electromagnetic transient analysis is adopted to find out the relationship between rotor current, voltage and crowbar resistance of the DFIG, and the control method is suitable for low voltage, high voltage and low-high voltage chain fault, solving the problem that it’s difficult to suppress the fluctuation between the rotor current and the bus voltage simultaneously during the gird fault ride-through. The theoretical analysis and simulation results validate that the method can effectively suppress the fluctuation of rotor current and DC bus voltage chain fault, and improve the system's fault ride-through capability. This work is supported by National Natural Science Foundation of China (No. 51607142).