A method for dispatching water quantity of multiple reservoir is disclosed in an embodiment of the present application, terminal, storage medium and heterogeneous computing system, in accordance withthat present invention, since the present embodiment can control the calculation and output of the individual optimum fitness among the Q complexes in parallel, then the population optimum fitness (img file = 'DDA0001882304610000011. TIF' wi= '91' he= '79'/) is output according to the individual optimum fitness, and the population optimum fitness (img file = 'DDA 0001882304610000012. TIF 'wi=' 72'he=' 79 '/) When the iteration termination condition is satisfied, the parameters corresponding to the optimal fitness (img file = 'DDA0001882304610000013. TIF' wi= '72' he= '79'/) of the populationare used to regulate the water quantity of the reservoir group, the parallelization technology improves the efficiency of calculating the water dispatching of reservoir group, and has higher computational efficiency for high-dimensional, non-linear and strongly constrained flood control problems.