Evaporation-cooled device attached to surface of super computer

The invention relates to an evaporation-cooled device attached to the surface of a super computer. A condenser (15) is arranged at the top of a super computer cabinet; and a liquid collection header pipe (11) is positioned downmost the evaporation-cooled device. N cooling liquid boxes (9) are positioned between the liquid collection header pipe (11) and a steam collection header pipe (12). A steam outlet pipe (13) is positioned above the steam collection header pipe (12) and under the condenser (15). The steam collection header pipe (12) is connected with the condenser (15) through the steam outlet pipe (13), and the condenser (15) is connected with the liquid collection header pipe (11) through a liquid returning pipe (14). The cooling liquid boxes (9) are in tight contact with heating elements of the super computer, N liquid inlet pipes (7) contained on the N cooling liquid boxes (9) are respectively communicated with the liquid collection header pipe (11), and N steam outlet pipes (8) contained on the N cooling liquid boxes (9) are respectively communicated with the steam collection header pipe (12), thereby forming an enclosed circulation cooling loop. A plurality of liquid channels with inner cavity bodies mutually communicated are arranged in the cooling liquid boxes (9) connected in parallel on a liquid path.