Abstract: Through the daily safety management of “planned supervision of key links”, the high risk problem in safety management of open-pit mining equipment maintenance enterprises is solved. This paper introduces the refining methods, safety technical standards, safety management standards, regular and dynamic supervision and application results of the planned supervision project in key links. Daily safety management of “planned supervision of key links” promotes the effective combination of equipment maintenance quality and safe operation so as to ensure the safe and stable operation of open-pit mining equipment and improve the safety management level of open-pit mining equipment maintenance enterprises.