The invention provides a cooling water circulation system. The cooling water circulation system comprises a cooling tower, a water storage pond, a water pump and a booster pump pipe network, wherein a water outlet of the water storage pond is connected with a water inlet of the water pump through a pipeline, a water outlet of the water pump is connected with a water inlet of a device to be cooled through a pipeline, a water turbine, a water distribution device and fan blades are arranged in the cooling tower, the water turbine comprises a shell, an impeller, a first water inlet, a second water inlet and a water outlet, the liquid inflow direction of the first water inlet is opposite to the liquid inflow direction of the second water inlet, each fan blade is arranged on the top of the cooling tower and connected to the center of the impeller through a transmission shaft, the booster pump pipe network is used for supercharging liquid flowing out through a water outlet of the device to be cooled and dividing the supercharged liquid into two branches, the two branched of supercharged liquid flow to the first inlet and the second inlet of the water turbine respectively, the water outlet of the water turbine is connected to the water distribution device of the cooling tower, and a water outlet of the cooling tower is connected to the water storage pond. By the adoption of the cooling water circulation system, the excellent cooling effect is achieved, and energy consumption is reduced.