The present invention relates to an artificial fish swarm algorithm-based cable cluster optimizing operation method. The method takes the maximum cable cluster carrying capacity as an objective function, takes a condition that the temperature of each cable is less than the highest rated temperature of the cable as a constraint condition, and adopts an artificial fish swarm algorithm to determine the optimal positions of the cables, thereby further realizing the cable cluster optimizing operation. The method can carry out the optimizing calculation on the current-carrying capacity of differentloops, and can determine an optimizing operation current and the cable wire core temperature of each loop. Compared with a conventional algorithm, the artificial fish swarm algorithm-based cable cluster optimizing operation method enables the electric energy transmission capability to be improved remarkably, and has the advantages of being scientific, reasonable, real and effective, being high inpractical value, etc.