Year-round efficient cooling water chilling unit

The invention provides a year-round efficient cooling water chilling unit. The year-round efficient cooling water chilling unit comprises an outdoor device, a cooling unit device and a user-side device. The outdoor device is connected with the cooling unit device through an outdoor water pump. The cooling unit device is connected with the user-side device through a user-side water pump. The outdoor device comprises at least one cooling tower module and at least one air cooling heat exchanger module. All the cooling tower modules and all the air cooling heat exchanger modules are connected with the cooing unit device through the outdoor water pump. According to the year-round efficient cooling water chilling unit, a natural cold source is used for cooling the user-side device, the capacity adjustment range is wide, the cooling efficiency in all seasons is high, energy-saving potential is large, and implementation is easy.