PURPOSE: To provide a closed cooling tower wherein it is miniaturized, made light weight and inexpensive by improving heat transfer performance and wherein water saving is ensured by making simple scale removal cleaning.

CONSTITUTION: There are provided latent heat heat cooling means 13 for cooling spread water emanating from a spreading apparatus 9 is cooled with latent heat via a filling member 13a, cooling water passage means 14 for feeding as cooling water the spread water from which heat is taken by the cooling means to a dry cooler 5 and further feeding the spread water back to the spreading apparatus, and heat exchange means 16 disposed on the cooler for ensuring heat transfer between circulaated water and the cooling water.