This paper proposes a deadbeat current control strategy for wind power generation systems based on hexagonal modular multilevel converter (H-MMC). First, the system topology and the mathematical model of H-MMC are introduced, and the expressions of bridge arm voltage and bridge arm current are obtained. Then the machine side and grid side are controlled respectively, the machine side, grid side current reference value, circulating current and neutral point voltage reference value are calculated, thus the bridge arm current reference value is calculated, and then no difference in the bridge arm current Beat control is carried out, the reference value of the bridge arm voltage is calculated, combined with nearest level modulation (NLM), the control signal of each sub-module is obtained. The control method has the advantages of simple control, low switching frequency, and is not affected by frequency fluctuations on the machine and grid sides. Finally, a direct-drive permanent magnet wind power generation system model based on H-MMC is built in Matlab/Simulink to verify the effectiveness of the proposed control method.