The invention discloses a safety protection device for drum equipment. According to the characteristics of much dust and moisture, high temperature and the like of drum equipment in a primary processing workshop, the safety protection device comprises a drum safety door monitoring part, a signal transmission part and a safety control part, wherein the monitoring part adopts hermetic cylindrical metal proximity switches with strong anti-jamming capacity to detect the opening state of a drum safety door, and the proximity switches can work for a long time in a severe environment; a monitoring loop is added on the basis of single-loop monitoring, the problem of failures of the proximity switches in the severe environment is drawn into full consideration, and double monitoring points are respectively mounted at the upper part and the lower part of the opening side of the drum safety door; a detection signal is transmitted by a bus to a PLC far away from the severe environment to be processed, and the reliability of signal transmission is drawn into full consideration; running of a drum is immediately stopped so long as a system detects a door opening signal of any loop. The safety protection device can reliably detect the state of the drum safety door on severe occasions to ensure the production security.