The invention provides a control method for inhibiting wind power fluctuation by a hybrid energy storage system based on variational mode decomposition. The method comprises the steps that: a wind power is subjected to moving average filter to determine the wind power grid-connected power and the hybrid energy storage charge-discharge power to perform variational mode decomposition of the hybrid energy storage charge-discharge power to obtain a plurality of sub sequences; mutual information shannon is calculated between adjacent sub sequences to determine a high-frequency component and a low-frequency component to achieve primary power distribution of the hybrid energy storage system; a power-type energy storage charge state is considered to perform fuzzy correction of the power distribution of the hybrid energy storage system to obtain an optimal hybrid energy storage system charge-discharge power so as to ensure the long-term and stable operation of the hybrid energy storage system on the premise of ensuring the inhibition effect of the wind power fluctuation.