The invention discloses a discrete control type energy-saving efficient radiator for a cloud computation server. The discrete control type energy-saving efficient radiator for the cloud computation server comprises multiple draught fans, a distribution pipe, multiple switch blades, multiple stepping motors, a central processing unit and multiple temperature sensors, wherein multiple air inlets and multiple air outlets are formed in the distribution pipe, the number of the air inlets, the number of the air outlets, the number of the draught fans, the number of the switch blades, the number of the stepping motors and the number of the temperature sensors are identical, each draught fan is installed on the inner side of the corresponding air inlet, each switch blade is installed on the inner side of the corresponding air outlet, each stepping motor is installed above the corresponding air outlet, rotary shafts of the stepping motors are connected with rotary shafts of the switch blades, the signal output ends of the multiple temperature sensors are correspondingly connected with the signal input end of the central processing unit, and the control input ends of the stepping motors are connected with the control output end of the central processing unit. According to the discrete control type energy-saving efficient radiator for the cloud computation server, the temperature of different portions of the cloud computation server is detected in real time through the temperature sensors, then the air volume of each air outlet is controlled, and sectionalized radiating control is achieved.