With the rising proportion of wind power generation, the effects on grid made by its randomness、volatility and intermittency can not be ignored. Based on hybrid energy storage system composed of super capacitor and battery, a adaptive composite energy storage control strategy to dampen the power fluctuations of wind farm was proposed. The feedback of super capacitor’s state to implement the control of lowpass filter and highpass filter’s time constant was introduced. It finished suppressing the power fluctuations and distribute the power reasonably to avoid overcharging/overdischarging of super capacitor at the same time. Finally, through the simulation of suppressing the power fluctuations under different time window for spring, summer, autumn and winter the effectiveness of the proposed adaptive control strategy was verified.