The invention relates to a surface coking protection component for a heater of a milk powder vacuum concentrator. The surface coking protection component comprises one machine body (1), wherein a material sensor module (2), an aerial detection module (3), a remote communication module (4) and a management module (5) are arranged on the machine body (1), the material sensor module (2) is used for sensing whether a heating surface is completely immersed or covered by materials, the aerial detection module (3) detects whether the air exists in concentration equipment, and the detected and sensedinformation is transmitted to the management module (5) to be processed by virtue of the remote communication module (4); and an executive device (6) is arranged on the machine body (1), and heating of steam can be timely stopped when vacuum pumping equipment is in a fault state or power failure state. By virtue of material covering in the concentration equipment and operation sensing, the surfaceof the heater can be prevented from being exposed, and life of the heater is more effectively prolonged.