The present invention discloses a multi-energy storage stochastic and dynamic planning method for flexibly suppressing the randomness of wind power and belongs to the power system automation technical field. According to the method of the invention, a multi-energy storage model with minimizing energy storage charging and discharging costs adopted as an objective function is constructed according to energy storage parameters; an energy storage charging upper proportion coefficient and an energy storage discharging lower proportion coefficient are additionally adopted on the basis of the upper and lower limit of original energy storage capacity; and a stochastic and dynamic planning method is utilized to optimize the multi-energy storage model on the basis of a known daily scheduling probability. With the multi-energy storage stochastic and dynamic planning method for flexibly suppressing the randomness of the wind power of the invention adopted, energy storage charging and discharging costs can be minimized under a condition that constraint conditions are satisfied, and the randomness of the wind power can be suppressed flexibly, and an energy storage life can be prolonged.